Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities
Net loss	$ (1,097)	$ (6,336)
Adjustments to reconcile net loss to net cash provided by (used in)
Depreciation and amortization	5,377	5,378
Deferred financing cost amortization	22	33
Bad debt expense (recoveries)	(5)	(1)
Deferred income taxes	(667)	(98)
Stock-based compensation	582	774
Gain on sale of property and equipment	(2)	(14)
Change in operating assets and liabilities:
Accounts receivable	15,367	(4,355)
Income tax receivable	430	(3,491)
Inventory	(724)	41
Note receivable	0	5
Prepaid expenses and other	464	(108)
Restricted cash	0	(13,952)
Costs and estimated earnings in excess of billings on uncompleted contracts	(1,118)	(1,964)
Accounts payable	(9,478)	(570)
Accrued liabilities	(1,817)	(1,030)
Income tax payable	27	0
Billings in excess of costs and estimated earnings on uncompleted contracts, net	815	5,677
Deferred revenue	(14)	(14)
Net cash provided by (used in) operating activities	8,162	(20,025)
Cash flows from investing activities:
Proceeds from sale of property and equipment	13	40
Purchase of property and equipment	(2,691)	(16,260)
Net cash used in investing activities	(2,678)	(16,220)
Cash flows from financing activities:
Borrowings from Credit Facility	0	13,000
Payments made on borrowings from Credit Facility	(2,889)	0
Exercise of stock options	206	13
Net cash (used in) provided by financing activities	(2,683)	13,013
Net change in cash and cash equivalents	2,801	(23,232)
Cash and cash equivalents at beginning of period	43,084	38,979
Cash and cash equivalents at end of period	45,885	15,747
Supplemental disclosures of cash flow information, cash paid during the period for:
Interest	209	121
Taxes (net of refunds)	$ (430)	$ 30