Operating Segment Results (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Net sales	$ 124,443	$ 127,297	$ 376,737	$ 380,726
Operating Income (Loss)	(2,739)	(2,117)	(13,861)	(10,051)
Mobile Solutions [Member]
Segment Reporting Information [Line Items]
Net sales	78,961	76,122	234,132	225,542
Power Solutions [Member]
Segment Reporting Information [Line Items]
Net sales	45,484	51,124	142,618	155,184
Corporate
Segment Reporting Information [Line Items]
Operating Income (Loss)	(5,392)	(4,225)	(16,064)	(17,651)
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	(2)	51	(13)	0
Operating Segments | Mobile Solutions [Member]
Segment Reporting Information [Line Items]
Net sales	78,961	76,122	234,132	225,542
Operating Income (Loss)	(1,283)	(474)	(6,063)	3,224
Operating Segments | Power Solutions [Member]
Segment Reporting Information [Line Items]
Net sales	45,484	51,124	142,618	155,184
Operating Income (Loss)	$ 3,936	$ 2,582	$ 8,266	$ 4,376