Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017
Cash Flows from Operating Activities:
Net loss	$ (2,192)	$ (1,772)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	289	543
Share-based compensation expense	122	292
Deferred tax		(481)
Changes in current assets and liabilities:
Trade accounts receivable	(845)	(1,010)
Contract assets	(1,720)	(1,984)
Other current assets	396	534
Accounts payable	869	(823)
Accrued compensation and benefits	68	(173)
Contract liabilities	(417)	1,149
Income taxes payable	(60)	149
Other current liabilities, net	(589)	(264)
Net cash used in operating activities	(4,079)	(3,840)
Cash Flows from Investing Activities:
Proceeds from notes receivable	14	40
Property and equipment acquired	(65)	(520)
Net cash used in investing activities	(51)	(480)
Cash Flows from Financing Activities:
Purchase of treasury stock		(91)
Payments on capitalized leases	(74)	(104)
Net cash used in financing activities	(74)	(195)
Net change in cash, cash equivalents and restricted cash	(4,204)	(4,515)
Cash, cash equivalents and restricted cash, at beginning of period	9,648	15,687
Cash, cash equivalents and restricted cash, at end of period	5,444	11,172
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	14	80
Cash paid (received) during the period for income taxes (net of refunds)	$ 74	$ (146)