Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2022	Apr. 03, 2021
Cash Flows from Operating Activities
Net Income	$ 8,099	$ 6,695
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation and amortization	7,768	6,922
Non-cash operating lease cost	1,842	736
Stock-based compensation expense	1,590	3,133
Deferred income taxes	93	606
(Recovery of) provision for credit losses	(307)	18
Other	139	122
Changes in Assets and Liabilities:
Accounts receivable	(10,236)	(3,117)
Contract assets	(10,766)	(19,881)
Inventories	(8,857)	(9,064)
Production cost of contracts	(371)	(488)
Other assets	504	(369)
Accounts payable	8,540	8,192
Contract liabilities	(4,236)	(4,007)
Operating lease liabilities	(1,615)	(784)
Accrued and other liabilities	(11,038)	(12,069)
Net Cash Used in Operating Activities	(18,851)	(23,355)
Cash Flows from Investing Activities
Purchases of property and equipment	(4,825)	(4,542)
Proceeds from sale of assets	51	0
Net Cash Used in Investing Activities	(4,774)	(4,542)
Cash Flows from Financing Activities
Borrowings from senior secured revolving credit facility	0	20,000
Repayments of senior secured revolving credit facility	0	(25,000)
Repayments of term loans	(31,750)	(2,676)
Repayments of other debt	(83)	(84)
Net cash paid upon issuance of common stock under stock plans	(1,598)	(3,837)
Net Cash Used in Financing Activities	(33,431)	(11,597)
Net Decrease in Cash and Cash Equivalents	(57,056)	(39,494)
Cash and Cash Equivalents at Beginning of Period	76,316	56,466
Cash and Cash Equivalents at End of Period	$ 19,260	$ 16,972