Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 02, 2022	Jul. 03, 2021
Cash Flows from Operating Activities
Net Income	$ 12,246	$ 15,118
Adjustments to Reconcile Net Income to Net Cash Provided by (Used in) Operating Activities:
Depreciation and amortization	15,666	13,908
Non-cash operating lease cost	3,582	1,563
Inventory write down and property and equipment impairment due to restructuring	832	0
Stock-based compensation expense	5,190	5,742
Deferred income taxes	(4,117)	1,002
Recovery of credit losses	(449)	(74)
Other	382	357
Changes in Assets and Liabilities:
Accounts receivable	(11,597)	(8,646)
Contract assets	(6,139)	(18,910)
Inventories	(13,821)	(15,381)
Production cost of contracts	879	(1,558)
Other assets	(136)	(1,147)
Accounts payable	15,674	3,475
Contract liabilities	(5,356)	(6,394)
Operating lease liabilities	(2,930)	(1,566)
Accrued and other liabilities	(3,788)	(5,307)
Net Cash Provided by (Used in) Operating Activities	6,118	(17,818)
Cash Flows from Investing Activities
Purchases of property and equipment	(9,068)	(7,367)
Proceeds from sale of assets	51	531
Post closing cash received from the acquisition of Magnetic Seal LLC, net	365	0
Net Cash Used in Investing Activities	(8,652)	(6,836)
Cash Flows from Financing Activities
Borrowings from senior secured revolving credit facility	0	20,000
Repayments of senior secured revolving credit facility	0	(30,000)
Repayments of term loans	(33,500)	(4,426)
Repayments of other debt	(168)	(170)
Net cash paid upon issuance of common stock under stock plans	(2,595)	(5,214)
Net Cash Used in Financing Activities	(36,263)	(19,810)
Net Decrease in Cash and Cash Equivalents	(38,797)	(44,464)
Cash and Cash Equivalents at Beginning of Period	76,316	56,466
Cash and Cash Equivalents at End of Period	$ 37,519	$ 12,002