Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 25, 2016	Jun. 27, 2015
Cash Flows from Operating Activities:
Net income (loss)	$ (2,352)	$ 1,599
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	619	784
Share-based compensation expense	242	249
Loss on disposal of fixed assets	1
Non cash change in note receivable		(635)
Deferred tax asset	(1,063)
Changes in current assets and liabilities:
Trade accounts receivable	9,823	2,715
Costs and estimated earnings in excess of billings on uncompleted contracts	414	(1,047)
Other current assets	662	351
Accounts payable	444	(2,544)
Accrued compensation and benefits	(635)	(554)
Billings in excess of costs and estimated earnings on uncompleted contracts	(162)	(1,428)
Income taxes payable	(257)	(349)
Other current liabilities, net	(72)	(1,102)
Net cash provided by (used in) operating activities	7,664	(1,961)
Cash Flows from Investing Activities:
Property and equipment acquired	(84)	(649)
Proceeds from notes receivable	29	6,083
Net cash (used in) provided by investing activities	(55)	5,434
Cash Flows from Financing Activities:
Debt issuance costs	(20)	(7)
Purchase of treasury stock	(479)
Payments on capitalized leases	(177)	(364)
Net cash used in financing activities	(676)	(371)
Net change in cash	6,933	3,102
Cash and cash equivalents, at beginning of period	7,806	6,213
Cash and cash equivalents, at end of period	14,739	9,315
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	87	101
Cash paid during the period for income taxes (net of refunds)	418	502
Supplemental disclosure of noncash investing activities:
Property and equipment purchased through capital lease assignment		$ 168