Segment Information - Schedule of Revenues, Expenditures and Other Operating Data of Company's Operating Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Revenue	$ 8,723	$ 7,244
Cost of revenue	6,560	4,751
Gross profit	2,163	2,493
Operating expenses	5,954	2,984
Other income (expense), net and income tax benefit (provision)	(1,334)	19
Loss from continuing operations before income taxes	(2,457)	(510)
Assets (at period end)	38,751	34,550	$ 38,954
Precision Electronic Solutions [Member]
Segment Reporting Information [Line Items]
Revenue	3,941	3,254
Cost of revenue	3,210	2,316
Gross profit	730	939
Operating expenses	2,791	1,117
Other income (expense), net and income tax benefit (provision)	(560)	26
Loss from continuing operations before income taxes	(1,502)	(203)
Assets (at period end)	19,402	17,206
Power Electronics & Displays [Member]
Segment Reporting Information [Line Items]
Revenue	2,991	2,479
Cost of revenue	2,112	1,594
Gross profit	879	886
Operating expenses	1,682	1,028
Other income (expense), net and income tax benefit (provision)	(587)	(15)
Loss from continuing operations before income taxes	(215)	(128)
Assets (at period end)	8,697	7,564
RF Solutions [Member]
Segment Reporting Information [Line Items]
Revenue	1,791	1,511
Cost of revenue	1,238	842
Gross profit	554	669
Operating expenses	1,481	839
Other income (expense), net and income tax benefit (provision)	(187)	8
Loss from continuing operations before income taxes	(740)	(178)
Assets (at period end)	$ 10,652	$ 9,781