Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash Flows from Operating Activities
Net Income	$ 31,495	$ 15,928	$ 28,789
Adjustments to Reconcile Net Income to Net Cash Provided by (Used in) Operating Activities:
Depreciation and amortization	33,438	32,571	31,421
Non-cash operating lease cost	8,513	8,215	7,267
Inventory write-down and property and equipment impairment due to restructuring	0	882	1,610
Stock-based compensation expense	17,836	15,045	10,744
Deferred income taxes	(7,454)	(9,832)	(9,392)
Provision for (recovery of) credit losses	624	1,417	(509)
Noncash loss on extinguishment of debt	0	0	295
Recognition of insurance recoveries	0	(3,886)	0
Other	297	411	1,060
Changes in Assets and Liabilities:
Accounts receivable	(5,648)	1,998	(31,188)
Contract assets	(22,898)	13,604	(14,885)
Inventories	2,320	(15,979)	(20,841)
Production cost of contracts	618	(2,825)	8
Other assets	(1,507)	(4,330)	(1,354)
Accounts payable	3,239	(18,420)	24,222
Contract liabilities	(19,047)	6,424	4,991
Operating lease liabilities	(8,270)	(7,618)	(6,473)
Accrued and other liabilities	624	(2,538)	6,915
Net Cash Provided by Operating Activities	34,180	31,067	32,680
Cash Flows from Investing Activities
Purchases of property and equipment	(14,129)	(19,522)	(19,689)
Proceeds from sale of assets	223	404	82
Payments for acquisition of BLR Aerospace L.L.C., net of cash acquired	0	(114,378)	0
Post closing cash received from acquisition of Magnetic Seal LLC, net of cash acquired	0	0	365
Net Cash Used in Investing Activities	(13,906)	(133,496)	(19,242)
Cash Flows from Financing Activities
Borrowings from senior secured revolving credit facility	20,000	176,500	4,000
Repayments of senior secured revolving credit facility	(35,000)	(152,700)	(4,000)
Borrowings from term loans	0	0	250,000
Repayments of term loans	(7,813)	(6,250)	(289,274)
Repayments of other debt	(329)	(336)	(344)
Debt issuance costs	0	0	(2,511)
Proceeds from issuance of common stock in public offering, net of issuance costs	0	85,107	0
Net cash paid upon issuance of common stock under stock plans	(2,856)	(3,275)	(1,379)
Net Cash (Used in) Provided by Financing Activities	(25,998)	99,046	(43,508)
Net Decrease in Cash and Cash Equivalents	(5,724)	(3,383)	(30,070)
Cash and Cash Equivalents at Beginning of Year	42,863	46,246	76,316
Cash and Cash Equivalents at End of Year	$ 37,139	$ 42,863	$ 46,246