Schedule of Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Total net revenue	$ 5,330	$ 7,376	$ 18,994	$ 23,348
Americas [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	3,257	4,707	12,834	14,628
EMEA [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	1,351	1,325	3,322	5,756
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	722	1,344	2,838	2,964
Signal Generators and Components [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	2,428	3,485	9,475	10,002
Signal Analyzers and Power Meters [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	1,232	1,996	4,738	5,392
Signal Processing Hardware [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	885	813	1,446	3,826
Software Licenses [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	66	178	481	1,508
Service [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	719	904	2,854	2,620
Test and Measurement [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	4,080	5,931	15,628	16,779
Test and Measurement [Member] | Americas [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	2,925	4,219	11,012	11,988
Test and Measurement [Member] | EMEA [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	452	517	1,952	2,015
Test and Measurement [Member] | Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	703	1,195	2,664	2,776
Test and Measurement [Member] | Signal Generators and Components [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	2,428	3,485	9,475	10,002
Test and Measurement [Member] | Signal Analyzers and Power Meters [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	1,232	1,996	4,738	5,392
Test and Measurement [Member] | Signal Processing Hardware [Member]
Disaggregation of Revenue [Line Items]
Total net revenue
Test and Measurement [Member] | Software Licenses [Member]
Disaggregation of Revenue [Line Items]
Total net revenue
Test and Measurement [Member] | Service [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	420	450	1,415	1,385
Radio Baseband and Software [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	1,250	1,445	3,366	6,569
Radio Baseband and Software [Member] | Americas [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	332	488	1,822	2,640
Radio Baseband and Software [Member] | EMEA [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	899	808	1,370	3,741
Radio Baseband and Software [Member] | Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	19	149	174	188
Radio Baseband and Software [Member] | Signal Generators and Components [Member]
Disaggregation of Revenue [Line Items]
Total net revenue
Radio Baseband and Software [Member] | Signal Analyzers and Power Meters [Member]
Disaggregation of Revenue [Line Items]
Total net revenue
Radio Baseband and Software [Member] | Signal Processing Hardware [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	885	813	1,446	3,826
Radio Baseband and Software [Member] | Software Licenses [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	66	178	481	1,508
Radio Baseband and Software [Member] | Service [Member]
Disaggregation of Revenue [Line Items]
Total net revenue	$ 299	$ 454	$ 1,439	$ 1,235