Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019
Cash Flows from Operating Activities:
Net income (loss)	$ 59	$ (2,207)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	313	258
Share-based compensation expense	177	45
Changes in current assets and liabilities:
Trade accounts receivable	(1,268)	2,748
Contract assets	807	(953)
Prepaids and other current assets	620	956
Accounts payable	(177)	(229)
Accrued compensation and benefits	883	(126)
Contract liabilities	(2,706)	209
Income taxes payable	(76)	16
Other current liabilities, net	(361)	(460)
Net cash provided by (used in) operating activities	(1,729)	257
Cash Flows from Investing Activities:
Proceeds from notes receivable	0	24
Property and equipment acquired	(228)	(191)
Net cash used in investing activities	(228)	(167)
Cash Flows from Financing Activities:
Purchase of common stock	0	(61)
Proceeds from PPP loan	4,937	0
Proceeds from revolving credit facility	1,476	0
Payments on finance leases	(64)	(1)
Net cash provided by (used in) financing activities	6,349	(62)
Net change in cash and cash equivalents	4,392	28
Cash at beginning of period	8,307	6,060
Cash at end of period	12,699	6,088
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	103	12
Right of use assets obtained in exchange for new operating lease liability	963	2,377
Cash paid during the period for income taxes (net of refunds)	16	0
Debt issuance costs	140	0
Leased assets obtained in exchange for new finance lease liabilities	$ 219	$ 236