Condensed Consolidated Statements of Cash Flows (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities
Net loss	$ (13,352,000)	$ (7,896,000)
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization	16,038,000	16,738,000
Deferred financing cost amortization	158,000	98,000
Bad debt expense (recoveries)	1,000	165,000
Deferred income taxes	(4,152,000)	4,446,000
Stock-based compensation	2,372,000	1,818,000
Gain on sale of property and equipment	(156,000)	(184,000)
Change in operating assets and liabilities:
Accounts receivable	(12,165,000)	23,356,000
Income tax receivable	11,347,000	(5,142,000)
Inventory	(197,000)	(409,000)
Note receivable	5,000	39,000
Prepaid expenses and other	668,000	957,000
Costs and estimated earnings in excess of billings on uncompleted contracts	2,906,000	11,894,000
Accounts payable	7,086,000	(15,022,000)
Accrued liabilities	994,000	(3,670,000)
Income tax payable	0	(262,000)
Billings in excess of costs and estimated earnings on uncompleted contracts, net	11,046,000	(164,000)
Deferred revenue	(43,000)	(43,000)
Net cash (used in) operating activities	22,556,000	26,719,000
Cash flows from investing activities:
Proceeds from sale of property and equipment	349,000	807,000
Purchase of property and equipment	(22,344,000)	(12,694,000)
Net cash used in investing activities	(21,995,000)	(11,887,000)
Cash flows from financing activities:
Borrowings from Credit Facility	13,000,000	0
Repayments of Debt	(2,489,000)	0
Exercise of stock options	176,000	185,000
Increase in loan costs	(14,000)	0
Purchase of shares into treasury	0	(3,003,000)
Net cash provided by (used in) financing activities	10,673,000	(2,818,000)
Net change in cash and cash equivalents	11,234,000	12,014,000
Cash and cash equivalents at beginning of period	38,979,000	23,174,000
Cash and cash equivalents at end of period	50,213,000	35,188,000
Supplemental disclosures of cash flow information, cash paid during the period for:
Interest	675,000	160,000
Taxes (net of refunds)	$ (14,138,000)	$ (3,185,000)