Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 7,844	$ 18,727	$ (7,451)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	27,338	22,359	21,077
Amortization	7,742	6,952	10,706
Allowance for doubtful accounts	140	(86)	(667)
Inventory excess and obsolescence reserve	183	80	(935)
Stock-based compensation expense	4,485	3,759	4,962
Gain on disposal of property, plant and equipment	(526)	(161)	(1,311)
Impairment of inventory and loss on contracts			700
Impairment of long-lived assets and gain on contracts		(4,346)	16,151
Deferred compensation	(17,089)	(3,923)	(514)
Loss on extinguishment of debt	216
Non-cash lease expense	3,840	4,251
Other non-cash adjustments	259	329	325
Changes in operating assets and liabilities:
Accounts receivable	7,791	(2,498)	(12,670)
Inventories	13,441	(1,631)	(27,896)
Tooling in progress	2,555	(3,988)	(824)
Prepaids and other current assets	532	(616)	(1,013)
Accounts payable	(9,438)	9,361	11,836
Deferred income taxes	687	4,710	(3,323)
Operating lease obligations	(3,078)	(3,856)
Accrued liabilities	(6,559)	3,003	5,304
Net cash provided by operating activities	40,363	52,426	14,457
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property, plant and equipment	(16,598)	(58,610)	(39,309)
Proceeds from sale of property, plant and equipment	1,059	7,942	5,348
Payment for acquisition, net of cash acquired	(88,593)
Net cash used in investing activities	(104,132)	(50,668)	(33,961)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from bank revolving credit notes	588,040	437,939	385,226
Payments on bank revolving credit notes	(512,783)	(433,312)	(362,873)
Repayments of other long-term debt	(6,673)	(1,107)	(268)
Payments of financing costs	(1,205)
Purchase of treasury stock	(2,661)	(4,947)	(2,153)
Payments on finance leases	(404)	(322)	(544)
Proceeds from the exercise of stock options			139
Other financing activities			(26)
Net cash provided by (used in) financing activities	64,314	(1,749)	19,501
Net increase (decrease) in cash and cash equivalents	545	9	(3)
Cash and cash equivalents at beginning of period	127	118	121
Cash and cash equivalents at end of period	672	127	118
Supplemental disclosure of cash flow information:
Cash paid for interest	10,669	3,670	2,122
Cash paid for taxes	513	704	1,548
Non-cash property, plant & equipment, net	446	603	6,347
Non-cash 401(k) contribution of treasury stock	2,500	$ 2,057	$ 625
In conjunction with the acquisition, assets acquired and liabilities assumed were as follows:
Fair value of assets acquired, net of cash acquired	102,356
Liabilities assumed	(13,763)
Cash paid for acquisition, net of cash acquired	$ 88,593