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Segment Information (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
USD ($)
segment
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Segment Reporting [Abstract]      
Reportable segments | segment 2    
Operating segments | segment 2    
Net sales $ 464,290 $ 489,270 $ 498,738
Operating Income (Loss) (27,548) (21,804) (21,092)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest (45,434) (53,671) (31,069)
Selling, General and Administrative Expense 49,481 47,436 49,635
Segment Reporting, Other Segment Item, Amount 15,966 12,510 17,686
Segment Reporting Information [Line Items]      
Net sales 464,290 489,270 498,738
Operating Income (Loss) (27,548) (21,804) (21,092)
Selling, General and Administrative Expense 49,481 47,436 49,635
Segment Reporting, Other Segment Item, Amount 15,966 12,510 17,686
Cost of sales (exclusive of depreciation and amortization shown separately below) 394,812 419,175 421,105
Depreciation expense 31,579 31,953 31,404
Cost of sales (exclusive of depreciation and amortization shown separately below) 394,812 419,175 421,105
Depreciation expense 31,579 31,953 31,404
Operating Segments | Mobile Solutions      
Segment Reporting [Abstract]      
Net sales 283,944 303,335 293,536
Operating Income (Loss) (18,078) (11,749) (2,165)
Selling, General and Administrative Expense 14,672 14,471 13,559
Segment Reporting, Other Segment Item, Amount 9,476 3,700 3,397
Segment Reporting Information [Line Items]      
Net sales 283,944 303,335 293,536
Operating Income (Loss) (18,078) (11,749) (2,165)
Selling, General and Administrative Expense 14,672 14,471 13,559
Segment Reporting, Other Segment Item, Amount 9,476 3,700 3,397
Cost of sales (exclusive of depreciation and amortization shown separately below) 251,847 271,110 253,906
Depreciation expense 26,027 25,803 24,839
Cost of sales (exclusive of depreciation and amortization shown separately below) 251,847 271,110 253,906
Depreciation expense 26,027 25,803 24,839
Operating Segments | Power Solutions      
Segment Reporting [Abstract]      
Net sales 180,545 185,948 205,204
Operating Income (Loss) 13,111 11,096 3,536
Selling, General and Administrative Expense 12,987 13,104 15,147
Segment Reporting, Other Segment Item, Amount 7,256 9,148 14,306
Segment Reporting Information [Line Items]      
Net sales 180,545 185,948 205,204
Operating Income (Loss) 13,111 11,096 3,536
Selling, General and Administrative Expense 12,987 13,104 15,147
Segment Reporting, Other Segment Item, Amount 7,256 9,148 14,306
Cost of sales (exclusive of depreciation and amortization shown separately below) 143,197 148,096 167,206
Depreciation expense 3,994 4,504 5,009
Cost of sales (exclusive of depreciation and amortization shown separately below) 143,197 148,096 167,206
Depreciation expense 3,994 4,504 5,009
Intersegment Eliminations [Member]      
Segment Reporting [Abstract]      
Net sales (199) (13) (2)
Operating Income (Loss) (22,581) (21,151) (22,463)
Selling, General and Administrative Expense 21,822 19,861 20,929
Segment Reporting, Other Segment Item, Amount (766) (338) (17)
Segment Reporting Information [Line Items]      
Net sales (199) (13) (2)
Operating Income (Loss) (22,581) (21,151) (22,463)
Selling, General and Administrative Expense 21,822 19,861 20,929
Segment Reporting, Other Segment Item, Amount (766) (338) (17)
Cost of sales (exclusive of depreciation and amortization shown separately below) (232) (31) (7)
Depreciation expense 1,558 1,646 1,556
Cost of sales (exclusive of depreciation and amortization shown separately below) (232) (31) (7)
Depreciation expense $ 1,558 $ 1,646 $ 1,556