Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities
Net loss	$ (210)	$ (1,097)
Adjustments to reconcile net loss to net cash provided by
Depreciation and amortization	5,619	5,377
Deferred financing cost amortization	0	22
Bad debt expense (recoveries)	(7)	(5)
Deferred income taxes	(34)	(667)
Stock-based compensation	407	582
Gain on sale of property and equipment	(93)	(3)
Change in operating assets and liabilities:
Accounts receivable	8,851	15,367
Income tax receivable	0	430
Inventory	(819)	(724)
Prepaid expenses and other	218	464
Costs and estimated earnings in excess of billings on uncompleted contracts	8,300	(1,118)
Accounts payable	(11,867)	(9,478)
Accrued liabilities	1,032	(1,816)
Income tax payable	(86)	27
Billings in excess of costs and estimated earnings on uncompleted contracts, net	(4,761)	815
Deferred revenue	(14)	(14)
Net cash provided by operating activities	6,536	8,162
Cash flows from investing activities:
Proceeds from sale of property and equipment	174	13
Payments to Acquire Land Held-for-use	22,199	0
Purchase of property and equipment	(2,005)	(2,691)
Net cash used in investing activities	(24,030)	(2,678)
Cash flows from financing activities:
Borrowings from Credit Facility	22,500	0
Payments made on borrowings from Credit Facility	(389)	(2,889)
Exercise of stock options	136	206
Net cash provided by (used in) financing activities	22,247	(2,683)
Net change in cash and cash equivalents	4,753	2,801
Cash and cash equivalents at beginning of period	40,859	43,084
Cash and cash equivalents at end of period	45,612	45,885
Supplemental disclosures of cash flow information, cash paid during the period for:
Interest	165	209
Taxes (net of refunds)	$ (14)	$ (430)