CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (22,781)	$ (27,867)	$ 49,411
Adjustments to reconcile net income to cash flows from operating activities:
Depreciation and amortization	14,737	17,384	17,630
Noncash amortization of debt financing costs	1,128	337	303
Pension plan settlement	0	0	2,942
Shared-based compensation expense	3,786	3,900	3,846
Deferred income tax expense (benefit)	505	24,041	(20,699)
Noncash (gain) loss on derivative contracts	(1,719)	(1,036)	(535)
Gain on sale of assets	0	(3,544)	0
Loss on extinguishment of debt	460	509	0
Loss on sale of Industrial Automation segment	0	7,856	0
Gain on sale of Cab structures business	0	(28,754)	0
Change in other operating items:
Accounts receivable	34,190	10,703	18,819
Inventories	11,293	(13,042)	15,000
Prepaid expenses	2,011	794	(5,123)
Accounts payable	(4,048)	2,825	(44,079)
Accrued liabilities	(4,885)	(9,131)	11,078
Cloud computing arrangements	(1,136)	(1,755)	(800)
Income taxes payable	3,377	(4,716)	(3,635)
Other operating activities, net	7,725	(11,956)	(5,882)
Net cash provided by (used in) operating activities	44,643	(33,452)	38,276
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(10,651)	(18,520)	(19,696)
Proceeds from disposal/sale of property, plant and equipment	45	4,455	0
Proceeds from sale of business	0	44,961	0
Net cash provided by (used in) investing activities	(10,606)	30,896	(19,696)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings under Term Loan due 2030	95,000	0	0
Repayment of Term Loan due 2030	(475)	0	0
Repayment of Prior Term Loan due 2027	(85,000)	(56,563)	(10,938)
Borrowings under prior revolving credit facility	0	89,000	25,000
Repayment of prior revolving credit facility	(50,500)	(38,500)	(25,000)
Borrowings under ABL revolving credit facility due 2030	30,300	0	0
Repayment of ABL revolving credit facility due 2030	(13,461)	0	0
Borrowings under China credit facility	4,186	0	4,368
Repayment of China credit facility	(2,757)	0	(4,368)
Surrender of common stock by employees	(238)	(318)	(1,636)
Debt extinguishment payments and early payment fees on debt	0	(416)	0
Debt issuance and amendment costs	(6,127)	(218)	0
Other financing activities, net	(161)	(107)	(155)
Net cash provided by (used in) financing activities	(29,233)	(7,122)	(12,729)
EFFECT OF CURRENCY EXCHANGE RATE CHANGES ON CASH	1,848	(1,540)	172
NET (DECREASE) INCREASE IN CASH	6,652	(11,218)	6,023
CASH:
Beginning of period	26,630	37,848	31,825
End of period	$ 33,282	$ 26,630	$ 37,848