Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 26, 2015
Cash Flows from Operating Activities:
Net Income (loss)	$ (2,342)	$ 10,536
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	1,143	1,456
Deferred income tax benefit	(1,071)	(9,137)
Share-based compensation expense	489	498
Loss on disposal of asset	(6)
Noncash change in note receivable		(635)
Changes in current assets and liabilities, net of acquisitions and dispositions:
Trade receivables	13,562	5,777
Costs and estimated earnings in excess of billings on uncompleted contracts	1,628	(516)
Prepaid expenses and other assets	461	(333)
Accounts payable	(306)	(2,675)
Accrued compensation and benefits	(987)	(551)
Billings in excess of costs and estimated earnings on uncompleted contracts	(2,541)	(5,920)
Other liabilities	(98)	(1,213)
Income taxes receivable (payable)	(367)	(134)
Net cash provided by (used in) operating activities	9,565	(2,847)
Cash Flows from Investing Activities:
Property and equipment acquired	(64)	(1,005)
Proceeds from notes receivable	115	6,083
Net cash provided by investing activities	51	5,078
Cash Flows from Financing Activities:
Purchase of treasury stock	(1,353)	(54)
Debt issuance costs	(20)	(7)
Payments on capitalized leases	(362)	(577)
Net cash used in financing activities	(1,735)	(638)
Net change in cash and cash equivalents	7,881	1,593
Cash and cash equivalents, at beginning of year	7,806	6,213
Cash and cash equivalents, at end of year	15,687	7,806
Cash paid during the period for:
Income taxes, net of refunds	410	485
Interest	410	485
Noncash activity:
Trade receivable converted to note receivable		151
Supplemental disclosures of noncash investment and financing activities
Property and equipment purchased under capital leases		$ 415