Segment Information - Schedule of Revenues, Expenditures and Other Operating Data of Company's Operating Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Revenue	$ 9,573	$ 8,723
Cost of revenue	7,687	6,560
Gross profit	1,886	2,163
Operating expenses	4,643	5,954
Other income (expense), net and income tax benefit (provision)	(1,848)	(1,334)
Loss from continuing operations before income taxes	(4,605)	(2,457)
Assets (at period end)	31,810	38,751	$ 31,932
Precision Electronic Solutions [Member]
Segment Reporting Information [Line Items]
Revenue	5,081	3,941
Cost of revenue	4,209	3,210
Gross profit	872	730
Operating expenses	2,772	2,791
Other income (expense), net and income tax benefit (provision)	(1,818)	(560)
Loss from continuing operations before income taxes	(3,718)	(1,502)
Assets (at period end)	19,040	19,402
Power Electronics & Displays [Member]
Segment Reporting Information [Line Items]
Revenue	2,401	2,991
Cost of revenue	1,634	2,112
Gross profit	767	879
Operating expenses	1,069	1,682
Other income (expense), net and income tax benefit (provision)	69	(587)
Loss from continuing operations before income taxes	(233)	(215)
Assets (at period end)	7,798	8,697
RF Solutions [Member]
Segment Reporting Information [Line Items]
Revenue	2,091	1,791
Cost of revenue	1,844	1,238
Gross profit	247	554
Operating expenses	802	1,481
Other income (expense), net and income tax benefit (provision)	(99)	(187)
Loss from continuing operations before income taxes	(654)	(740)
Assets (at period end)	$ 4,973	$ 10,652