Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities
Net loss	$ (1,373)	$ (885)
Adjustments to reconcile net loss to net cash provided by
Depreciation and amortization	11,263	10,728
Deferred financing cost amortization	0	35
Bad debt recoveries	(7)	(3)
Deferred income taxes	(911)	(747)
Stock-based compensation	782	1,132
Gain on sale of property and equipment	(176)	(48)
Change in operating assets and liabilities:
Accounts receivable	7,751	14,905
Income tax receivable	0	269
Inventory	(1,426)	(869)
Prepaid expenses and other	498	930
Costs and estimated earnings in excess of billings on uncompleted contracts	(5,700)	(647)
Accounts payable	(3,311)	(9,324)
Accrued liabilities	3,054	(2,762)
Income tax payable	(103)	86
Billings in excess of costs and estimated earnings on uncompleted contracts	(6,673)	(5,700)
Deferred revenue	(29)	(29)
Net cash provided by operating activities	3,639	7,071
Cash flows from investing activities:
Proceeds from sale of property and equipment	338	81
Purchase of land	22,199	0
Purchase of property and equipment	(10,718)	(6,917)
Net cash used in investing activities	(32,579)	(6,836)
Cash flows from financing activities:
Borrowings from Credit Facility	22,500	0
Contribution from non controlling interest	0	33
Payments made on borrowings from Credit Facility	(389)	(3,278)
Exercise of stock options	340	510
Net cash provided by (used in) financing activities	22,451	(2,735)
Net change in cash and cash equivalents	(6,489)	(2,500)
Cash and cash equivalents at beginning of period	40,859	43,084
Cash and cash equivalents at end of period	34,370	40,584
Supplemental disclosures of cash flow information, cash paid during the period for:
Interest	325	337
Taxes (net of refunds)	$ 146	$ (269)