View Filing Data

Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2011	Aug. 08, 2011
Entity Information [Line Items]
Entity Registrant Name	NATURAL GAS SERVICES GROUP INC
Entity Central Index Key	0001084991
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2011
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		12,226,499

Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2011	Dec. 31, 2010
Current Assets:
Cash and cash equivalents	$ 16,861	$ 19,137
Trade accounts receivable, net of allowance for doubtful accounts of $171 and $246 as of December 31, 2010 and June 30, 2011, respectively	4,780	5,279
Inventory, net of allowance for obsolescence of $250 and $499 as of December 31, 2010 and June 30, 2011, respectively	22,765	21,489
Prepaid income taxes	273	2,103
Prepaid expenses and other	405	330
Total current assets	45,084	48,338
Rental equipment, net of accumulated depreciation of $44,245 and $47,129 as of December 31, 2010 and June 30, 2011, respectively	133,715	120,755
Property and equipment, net of accumulated depreciation of $7,899 and $7,647 as of December 31, 2010 and June 30, 2011, respectively	6,746	7,149
Goodwill, net of accumulated amortization of $325, both periods	10,039	10,039
Intangibles, net of accumulated amortization of $1,757 and $1,802 as of December 31, 2010 and June 30, 2011, respectively	2,371	2,461
Other assets	27	27
Total assets	197,982	188,769
Current Liabilities:
Line of credit	2,000	2,000
Accounts payable	2,651	3,364
Accrued liabilities	3,120	2,151
Current income tax liability	29	0
Deferred income	1,515	389
Total current liabilities	9,315	7,904
Deferred income tax payable	32,394	29,746
Other long-term liabilities	528	528
Total liabilities	42,237	38,178
Stockholders’ Equity:
Preferred stock, 5,000 shares authorized, no shares issued or outstanding	0	0
Common stock, 30,000 shares authorized, par value $0.01; 12,148 and 12,179 shares issued and outstanding as of December 31, 2010 and June 30, 2011, respectively	122	122
Additional paid-in capital	86,683	86,034
Retained earnings	68,940	64,435
Total stockholders' equity	155,745	150,591
Liabilities and Stockholders' Equity	$ 197,982	$ 188,769

Condensed Balance Sheets Parenthetical - USD ($) shares in Thousands, $ in Thousands	Jun. 30, 2011	Dec. 31, 2010
Current Assets:
Allowance for doubtful accounts	$ 212	$ 171
Allowance for inventory obsolescence	785	250
Noncurrent Assets:
Accumulated depreciation, rental equipment	50,135	44,245
Accumulated depreciation, property and equipment	7,941	7,899
Accumulated amortization, goodwill	325	325
Accumulated amortization, intangibles	$ 1,846	$ 1,757
Stockholders' Equity:
Preferred stock, shares authorized	5,000	5,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	30,000	30,000
Common stock, shares issued	12,179	12,148
Common stock, shares outstanding	12,179	12,148

Income Statements - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenue:
Sales, net	$ 1,901	$ 1,779	$ 5,778	$ 3,241
Rental income	11,601	9,902	22,482	19,777
Service and maintenance income	256	220	552	433
Total revenue	13,758	11,901	28,812	23,451
Operating costs and expenses:
Cost of sales, exclusive of depreciation stated separately below	638	1,137	3,186	2,128
Cost of rentals, exclusive of depreciation stated separately below	4,909	3,792	9,271	7,596
Cost of service and maintenance, exclusive of depreciation stated separately below	93	152	231	306
Selling, general, and administrative expense	1,462	1,522	2,848	3,020
Depreciation and amortization	3,434	2,905	6,725	5,779
Total operating costs and expenses	10,536	9,508	22,261	18,829
Operating income	3,222	2,393	6,551	4,622
Other income (expense):
Interest expense	(28)	(53)	(37)	(127)
Other income (expense)	45	66	753	43
Total other income (expense)	17	13	716	(84)
Income before provision for income taxes	3,239	2,406	7,267	4,538
Provision for income taxes	1,231	862	2,762	1,630
Net income	$ 2,008	$ 1,544	$ 4,505	$ 2,908
Earnings per share:
Basic	$ 0.16	$ 0.13	$ 0.37	$ 0.24
Diluted	$ 0.16	$ 0.13	$ 0.37	$ 0.24
Weighted average shares outstanding:
Basic	12,179	12,104	12,157	12,103
Diluted	12,288	12,205	12,265	12,203

Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
Condensed Statements of Cash Flows - USD ($) $ in Thousands	Jun. 30, 2011	Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 4,505	$ 2,908
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,725	5,779
Deferred taxes	2,649	863
Stock options and restricted stock expense	450	592
Gain on disposal of assets	(702)	(36)
Changes in current assets and liabilities:
Trade accounts receivables, net	499	4,100
Inventory, net	(1,265)	946
Prepaid income taxes and prepaid expenses	1,755	(1,186)
Accounts payable and accrued liabilities	256	144
Current income tax liability	29	767
Deferred income	1,126	82
Other		(7)
NET CASH PROVIDED BY OPERATING ACTIVITIES	16,027	14,952
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(19,481)	(6,030)
Proceeds from sale of property and equipment	980	36
NET CASH USED IN INVESTING ACTIVITIES	(18,501)	(5,994)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from other long-term liabilities, net	0	(7)
Repayments of long-term debt	0	(1,690)
Repayments of line of credit	0	(6,500)
Proceeds from exercise of stock options	198	53
NET CASH PROVIDED BY FINANCING ACTIVITIES	198	(8,144)
NET CHANGE IN CASH	(2,276)	814
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	19,137	23,017
CASH AND CASH EQUIVALENTS AT END OF PERIOD	16,861	23,831
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Interest paid	43	157
Income taxes paid	0	1,118
NON-CASH TRANSACTIONS
Transfer of rental equipment to inventory	$ 0	$ 225

Basis of Presentation and Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2011
Basis of Presentation and Summary of Significant Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies [Text Block]	Basis of Presentation and Summary of Significant Accounting Policies These notes apply to the condensed financial statements of Natural Gas Services Group, Inc. (the "Company", “NGSG”, "Natural Gas Services Group", "we" or "our") (a Colorado corporation). We were formed on December 17, 1998 for the purposes of combining the operations of certain manufacturing, service and leasing entities. The accompanying unaudited condensed financial statements present the condensed results of our Company taken from our books and records. In our opinion, such information includes all adjustments, consisting of only normal recurring adjustments, which are necessary to make our financial position at June 30, 2011 and the results of our operations for the three and six months ended June 30, 2010 and 2011 not misleading. As permitted by the rules and regulations of the Securities and Exchange Commission (SEC) the accompanying condensed financial statements do not include all disclosures normally required by generally accepted accounting principles in the United States of America (GAAP). These financial statements should be read in conjunction with the financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2010 on file with the SEC. In our opinion, the condensed financial statements are a fair presentation of the financial position, results of operations and cash flows for the periods presented. The results of operations for the six months ended June 30, 2011 are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2011. Revenue recognition Revenue from the sales of custom and fabricated compressors, and flare systems is recognized upon shipment of the equipment to customers or when all conditions have been met or title is transferred to the customer. Exchange and rebuild compressor revenue is recognized when both the replacement compressor has been delivered and the rebuild assessment has been completed. Revenue from compressor services is recognized upon providing services to the customer. Maintenance agreement revenue is recognized as services are rendered. Rental revenue is recognized over the terms of the respective rental agreements based upon the classification of the rental agreement. Deferred income represents payments received before a product is shipped. Revenue from the sale of rental units is included in sales revenue when equipment is shipped or title is transferred to the customer. Fair Value of Financial Instruments Our financial instruments consist principally of cash and cash equivalents, accounts receivable, accounts payable and our line of credit. Pursuant to ASC 820 (Accounting Standards Codification), the fair value of our cash equivalents is determined based on “Level 1” inputs, which consist of quoted prices in active markets for identical assets. We believe that the recorded values of all of our other financial instruments approximate their current fair values because of their nature and respective relatively short maturity dates or durations. Recently Issued Accounting Pronouncements In January 2010, the FASB (Financial Accounting Standards Board) issued authoritative guidance intended to improve disclosures about fair value measurements. The guidance requires entities to disclose significant transfers in and out of fair value hierarchy levels and the reasons for the transfers and to present information about purchases, sales, issuances and settlements separately in the reconciliation of fair value measurements using significant unobservable inputs (Level 3). Additionally, the guidance clarifies that a reporting entity should provide fair value measurements for each class of assets and liabilities and disclose the inputs and valuation techniques used for fair value measurements using significant other observable inputs (Level 2) and significant unobservable inputs (Level 3). This guidance was effective for us on January 1, 2010 except for the disclosures about purchases, sales, issuances and settlements in the Level 3 reconciliation; this portion became effective on January 1, 2011. As this guidance provides only disclosure requirements, the adoption of this standard did not impact our results of operations, cash flows or financial position. In March 2010, the FASB issued authoritative guidance intended to clarify the scope exception related to embedded credit derivative features related to the transfer of credit risk in the form of subordination of one financial instrument to another. The guidance addresses how to determine which embedded credit derivative features, including those in collateralized debt obligations and synthetic collateralized debt obligations, are considered to be embedded derivatives that should not be analyzed under Accounting Standards Codification Topic 815, “Derivatives and Hedging” Subtopic 15-25 for potential bifurcation and separate accounting. This guidance is effective for each reporting entity at the beginning of its fiscal quarter beginning after September 15, 2010. We do not have any embedded credit derivative features with respect to our financial instruments; therefore, this standard did not have any impact on our financial statements.

Stock Based Compensation

6 Months Ended

Jun. 30, 2011

Stock-Based Compensation [Abstract]

Disclosure of Compensation Related Costs, Share-based Payments [Text Block]

Stock-Based Compensation

Stock Options:

A summary of option activity under our 1998 Stock Option plan for the six months ended June 30, 2011 is presented below.



	Number of Stock Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (years)	Aggregate Intrinsic Value (in thousands)
Outstanding, December 31, 2010	423,206		$	14.76	7.33	$	1,858
Granted	30,000		17.60		8.00	—
Exercised	(18,571	)	10.66		—	127
Cancelled/Forfeited	(3,333	)	17.51		—	4
Outstanding, June 30, 2011	431,302		$	15.12	7.01	$	1,043
Exercisable, June 30, 2011	318,302		$	14.32	6.47	$	980

We granted an option to purchase 10,000 shares to our Vice President of Technical Services and 17,000 shares to our non-executive employees on January 24, 2011 at an exercise price of $17.81 with a three year vesting period. We also granted additional options to purchase 3,000 shares to non-executive employees on June 14, 2011 at an exercise price of $15.70 with a three year vesting period.

The following table summarizes information about the stock options outstanding at June 30, 2011:



Range of Exercise Prices	Options Outstanding				Options Exercisable
Range of Exercise Prices	Shares	Weighted Average Remaining Contractual Life (years)	Weighted Average Exercise Price		Shares	Weighted Average Exercise Price
0.01 - 5.58	7,500	2.17	$	4.99	7,500	$	4.99
5.59 – 9.43	94,239	5.49	8.63		94,239	8.63
9.44 – 15.60	65,000	6.49	12.34		55,000	12.77
15.61 – 20.48	264,563	7.82	18.40		161,563	18.60
0.01 – 20.48	431,302	7.01	$	15.12	318,302	$	14.32

The summary of the status of our unvested stock options as of December 31, 2010 and changes during the six months ended June 30, 2011 is presented below.



Unvested stock options:	Shares		Weighted Average Grant Date Fair Value
Unvested at December 31, 2010	116,333		$	8.18
Granted	30,000		10.01
Vested	(33,333	)	8.25
Unvested at June 30, 2011	113,000		$	8.65

As of June 30, 2011, there was $598,460 of unrecognized compensation cost related to unvested options. Such cost is expected to be recognized over a weighted-average period of 1.78 years. Total compensation expense for stock options was $469,000 and $234,150 for the six months ended June 30, 2010 and 2011, respectively.

Restricted Stock:

On January 24, 2011, we awarded and issued 5,985 shares of restricted stock to two executive officers. The restricted stock awarded vests one year from the date of grant. On January 27, 2011, we awarded and issued 20,000 shares of restricted stock to our Chief Executive Officer pursuant to the terms of his employment agreement. The restricted stock vests one year from the date of the grant. On June 15, 2011, we awarded and issued 10,000 shares of restricted stock to two executive officers. The restricted stock vests in annual one-third installments beginning on the first anniversary date of the award. On April 11, 2011, we awarded and issued 12,500 shares of restricted stock to our Board of Directors as part payment for 2011 Director fees. The restricted stock vests in quarterly installments beginning in 2012. Total compensation expense related to restricted stock awards was $123,000 and $215,868 for the six months ended June 30, 2010 and 2011, respectively. As of June 30, 2011, there was a total of $583,761 of unrecognized compensation expenses related to these shares of restricted stock.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

+ Details

Inventory

6 Months Ended

Jun. 30, 2011

Inventory [Abstract]

Inventory Disclosure [Text Block]

Inventory

Our inventory, net of allowance for obsolescence of $250,000 at December 31, 2010 and $785,195 at June 30, 2011, consisted of the following amounts:



	December 31, 2010		June 30, 2011
	(in thousands)
Raw materials	$	17,770	$	18,273
Work in process	3,719		4,492
	$	21,489	$	22,765

During the six months ended June 30, 2011, there was no write off of obsolete inventory against the allowance for obsolescence.

Credit Facility	6 Months Ended
Credit Facility	Jun. 30, 2011
Credit Facility [Abstract]
Short-term Debt [Text Block]	Credit Facility Line of Credit On December 10, 2010, we paid off our existing term loan and line of credit at WNB and established a new $20 million senior secured revolving credit facility (subject to a right, on an uncommitted basis, to increase the commitments there under up to $40 million) with JPMorgan Chase Bank, N.A. (the “Credit Agreement”). The Credit Agreement provides us with an aggregate initial commitment amount of $20 million, subject to collateral availability. The terms of the Credit Agreement also include: Borrowing Base. At any time before the maturity of the facility, we may draw, repay and re-borrow amounts available under the borrowing base up to the maximum aggregate availability discussed above. Generally, the borrowing base equals the sum of (a) 80% of our eligible accounts receivable plus (b) 50% of the book value of our eligible general inventory (not to exceed 50% of the commitment amount at the time) plus (c) 75% of the book value of our eligible equipment inventory. JPMorgan Chase Bank (the “Lender”) may adjust the borrowing base components if material deviations in the collateral are discovered in future audits of the collateral. The borrowing base was $20 million at June 30, 2011. Interest and Fees. Under the terms of the Credit Agreement, we have the option of selecting the applicable variable rate for each revolving loan, or portion thereof, of either (a) LIBOR multiplied by the Statutory Reserve Rate (as defined in the Credit Agreement) to which the Lender is subject, with respect to this rate, for Eurocurrency funding, plus the Applicable Margin (“LIBOR-based”), or (b) CB Floating Rate, which is the Lender’s Prime Rate less the Applicable Margin; provided, however, that no more than three LIBOR-based borrowings under the facility may be outstanding at any one time. The “Applicable Margin” is based on our leverage ratio (debt-to-EBITDA). For purposes of the LIBOR-based interest rate, the Applicable Margin ranges from 2.25% if our leverage ratio exceeds 2.00x to 1.75% if our leverage ratio is less than 1.00x. For purposes of the CB Floating Rate, the Applicable Margin ranges from 0.50% if our leverage ratio exceeds 2.00x to 1.00% if our leverage ratio is less than 1.00x. The interest rate was 1.954% at June 30, 2011. Accrued interest is payable monthly on outstanding principal amounts, provided that accrued interest on LIBOR-based loans is payable at the end of each interest period, but in no event less frequently than quarterly. In addition, fees and expenses are payable in connection with our requests for letters of credit (generally equal to the Applicable Margin for LIBOR-related borrowings multiplied by the face amount of the requested letter of credit) and administrative and legal costs. Maturity. The maturity date of the secured revolving credit facility under the Credit Agreement is December 31, 2011, at which time all amounts borrowed under the facility will be due and outstanding letters of credit must be cash collateralized. The facility may be terminated early upon our request or the occurrence of an event of default. Security. The obligations under the Credit Agreement are secured by a first priority lien equal to approximately two times the loan commitment as represented by our rental fleet equipment. Covenants. The Credit Agreement contains customary representations and warranties, as well as covenants which, among other things, limit our ability to incur additional indebtedness and liens; enter into transactions with affiliates; make acquisitions in excess of certain amounts; pay dividends; redeem or repurchase capital stock or senior notes; make investments or loans; make negative pledges; consolidate, merge or effect asset sales; or change the nature of our business. In addition, we have certain financial covenants that require us to maintain on a consolidated basis a Leverage Ratio less than or equal to 2.50 to 1.00 as of the last day of each fiscal quarter. Events of Default and Acceleration. The secured revolving credit facility contains customary events of default for credit facilities of this size and type, and includes, without limitation, payment defaults; defaults in performance of covenants or other agreements contained in the transaction documents; inaccuracies in representations and warranties; certain defaults, termination events or similar events; certain defaults with respect to any other Company indebtedness in excess of $50,000; certain bankruptcy or insolvency events; the rendering of certain judgments in excess of $150,000; certain ERISA events; certain change in control events and the defectiveness of any liens under the secured revolving credit facility. Obligations under the secured revolving credit facility may be accelerated upon the occurrence of an event of default. In connection with establishing the credit facility, we paid $2,816,106 to WNB which represented payment in full of the principal and interest owed under our term loan with WNB. In making this payment, we drew $2,000,000 on the line of credit under the Credit Agreement described above. As of June 30, 2011, we were in compliance with all covenants in our loan agreement. A default under our bank credit facility could trigger the acceleration of our bank debt so that it is immediately due and payable. Such default would likely limit our ability to access credit

Other Long-term Liabilities	6 Months Ended
Other Long-term Liabilities	Jun. 30, 2011
Other Long-term Liabilities [Abstract]
Other Liabilities Disclosure [Text Block]	Other Long-term Liabilities As of June 30, 2011, we had a long-term liability of $275,000 to Midland Development Corporation. This amount is to be recognized as income contingent upon certain staffing requirements in the future. In addition, we entered into a purchase agreement with a vendor on July 30, 2008 pursuant to which we agreed to purchase up to $4.8 million of our paint and coating requirements exclusively from the vendor. In connection with the execution of the agreement, the vendor paid us a $300,000 fee which is considered to be a discount toward future purchases from the vendor. Based on our historical paint and coating requirements, we estimate meeting the $4.8 million purchase obligation within five years. The $300,000 payment we received is recorded as a long-term liability and will decrease as the purchase commitment is fulfilled. The long-term liability remaining as of June 30, 2011 was $253,000.

Earnings per Share

6 Months Ended

Jun. 30, 2011

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

Earnings per Share

The following table reconciles the numerators and denominators of the basic and diluted earnings per share computation.



	Three months ended				Six months ended
	June 30,				June 30,
	(in thousands, except per share data)				(in thousands, except per share data)
	2010		2011		2010		2011
Numerator:
Net income	$	1,544	$	2,008	$	2,908	$	4,505
Denominator for basic net income per common share:
Weighted average common shares outstanding	12,104		12,179		12,103		12,157
Denominator for diluted net income per share:
Weighted average common shares outstanding	12,104		12,179		12,103		12,157
Dilutive effect of stock options and restricted stock	101		109		100		108
Diluted weighted average shares	12,205		12,288		12,203		12,265
Earnings per common share:
Basic	$	0.13	$	0.16	$	0.24	$	0.37
Diluted	$	0.13	$	0.16	$	0.24	$	0.37

A total of 104,653 stock options for the six months ended June 30, 2010 and a total of 59,680 stock options for the six months ended June 30, 2011 were excluded from the diluted weighted average shares, as their effect would be anti-dilutive.

Segment Information

6 Months Ended

Jun. 30, 2011

Segment Information [Abstract]

Segment Reporting Disclosure [Text Block]

Segment Information

FASB ASC 280, Segment Reporting, establishes standards for public companies relating to the reporting of financial and descriptive information about their operating segments in financial statements. Operating segments are components of an enterprise about which separate financial information is available that is evaluated regularly by chief operating decision makers in the allocation of resources and the assessment of performance. Our management identifies segments based upon major revenue sources as shown in the tables below. However, management does not track assets by segment.



For the three months ended June 30, 2011 (in thousands):
	Sales		Rental		Service & Maintenance		Corporate			Total
Revenue	$	1,901	$	11,601	$	256	$	—		$	13,758
Operating costs and expenses	638		4,909		93		4,896			10,536
Other income/(expense)	—		—		—		17			17
Income before provision for income taxes	$	1,263	$	6,692	$	163	$	(4,879	)	$	3,239



For the three months ended June 30, 2010 (in thousands):
	Sales		Rental		Service & Maintenance		Corporate			Total
Revenue	$	1,779	$	9,902	$	220	$	—		$	11,901
Operating costs and expenses	1,137		3,792		152		4,427			9,508
Other income/(expense)	—		—		—		13			13
Income before provision for income taxes	$	642	$	6,110	$	68	$	(4,414	)	$	2,406



For the six months ended June 30, 2011 (in thousands):
	Sales		Rental		Service & Maintenance		Corporate			Total
Revenue	$	5,778	$	22,482	$	552	$	—		$	28,812
Operating costs and expenses	3,186		9,271		231		9,573			22,261
Other income/(expense)	—		—		—		716			716
Income before provision for income taxes	$	2,592	$	13,211	$	321	$	(8,857	)	$	7,267



For the six months ended June 30, 2010 (in thousands):
	Sales		Rental		Service & Maintenance		Corporate			Total
Revenue	$	3,241	$	19,777	$	433	$	—		$	23,451
Operating costs and expenses	2,128		7,596		306		8,799			18,829
Other income/(expense)	—		—		—		(84		)	(84		)
Income before provision for income taxes	$	1,113	$	12,181	$	127	$	(8,883	)	$	4,538

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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+ Details

Legal Proceedings	6 Months Ended
Legal Proceedings	Jun. 30, 2011
Legal Proceedings [Abstract]
Legal Matters and Contingencies [Text Block]	Legal Proceedings From time to time, we are a party to various other legal proceedings in the ordinary course of our business. While management is unable to predict the ultimate outcome of these actions, it believes that any ultimate liability arising from these actions will not have a material adverse effect on our financial position, results of operations or cash flow. We are not currently a party to any material legal proceedings and we are not aware of any other threatened litigation.

Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2011
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Subsequent Events On July 25, 2011, we closed on the acquisition of an office and service complex in Bloomfield, New Mexico. The facility will serve as the company location for our Farmington branch (it was previously used for the same purpose under a rental agreement). The building was acquired for $775,000 utilizing funds held in escrow from the sale of our former Midland headquarters and fabrication facility. The transaction completes the terms of a like-kind exchange under Section 1031 of the Internal Revenue code providing for a deferral of taxable gain realized on the sale of the Midland facility.