The Company’s disaggregated revenues consist of the following for the year ended December 31, 2021: (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Total revenue	$ 35,546,000	$ 23,629,000
Revenue lending and trading activities	16,854,000
Revenue from Contract with Customer, Including Assessed Tax	52,400,000	23,871,000
R F Microwave Filters [Member]
Disaggregation of Revenue [Line Items]
Total revenue	4,905,000	4,330,000
Detectorlogarithmicvideoamplifiers [Member]
Disaggregation of Revenue [Line Items]
Total revenue	1,888,000	473,000
Power Supply Units [Member]
Disaggregation of Revenue [Line Items]
Total revenue	12,941,000	8,072,000
Power Supply Systems [Member]
Disaggregation of Revenue [Line Items]
Total revenue	241,000	1,482,000
Healthcare Diagnostic Systems [Member]
Disaggregation of Revenue [Line Items]
Total revenue	794,000	1,012,000
E V Chargers [Member]
Disaggregation of Revenue [Line Items]
Total revenue	18,000
Defense Systems [Member]
Disaggregation of Revenue [Line Items]
Total revenue	10,140,000	8,260,000
Digital Currency Mining [Member]
Disaggregation of Revenue [Line Items]
Total revenue	3,450,000
Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue	1,169,000
Goods Transferred At A Point In Time [Member]
Disaggregation of Revenue [Line Items]
Total revenue	23,790,000	14,357,000
Services Transferred Over Time [Member]
Disaggregation of Revenue [Line Items]
Total revenue	11,756,000
North America [Member]
Disaggregation of Revenue [Line Items]
Total revenue	15,943,000	11,218,000
Europe [Member]
Disaggregation of Revenue [Line Items]
Total revenue	7,949,000	2,329,000
Middle East [Member]
Disaggregation of Revenue [Line Items]
Total revenue	10,803,000	9,273,000
Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue	851,000	809,000
G W W [Member]
Disaggregation of Revenue [Line Items]
Total revenue	25,581,000	18,213,000
Revenue from Contract with Customer, Including Assessed Tax	25,581,000	18,213,000
G W W [Member] | R F Microwave Filters [Member]
Disaggregation of Revenue [Line Items]
Total revenue	4,905,000	4,330,000
G W W [Member] | Detectorlogarithmicvideoamplifiers [Member]
Disaggregation of Revenue [Line Items]
Total revenue	1,888,000	473,000
G W W [Member] | Power Supply Units [Member]
Disaggregation of Revenue [Line Items]
Total revenue	7,613,000	2,656,000
G W W [Member] | Power Supply Systems [Member]
Disaggregation of Revenue [Line Items]
Total revenue	241,000	1,482,000
G W W [Member] | Healthcare Diagnostic Systems [Member]
Disaggregation of Revenue [Line Items]
Total revenue	794,000	1,012,000
G W W [Member] | Defense Systems [Member]
Disaggregation of Revenue [Line Items]
Total revenue	10,140,000	8,260,000
G W W [Member] | Goods Transferred At A Point In Time [Member]
Disaggregation of Revenue [Line Items]
Total revenue	13,825,000	8,941,000
G W W [Member] | Services Transferred Over Time [Member]
Disaggregation of Revenue [Line Items]
Total revenue	11,756,000	9,272,000
G W W [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Total revenue	6,788,000	6,718,000
G W W [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Total revenue	7,492,000	1,879,000
G W W [Member] | Middle East [Member]
Disaggregation of Revenue [Line Items]
Total revenue	10,803,000	9,273,000
G W W [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue	498,000	343,000
Turn On Green [Member]
Disaggregation of Revenue [Line Items]
Total revenue	5,346,000	5,416,000
Revenue from Contract with Customer, Including Assessed Tax	5,346,000
Turn On Green [Member] | Power Supply Units [Member]
Disaggregation of Revenue [Line Items]
Total revenue	5,328,000	5,416,000
Turn On Green [Member] | E V Chargers [Member]
Disaggregation of Revenue [Line Items]
Total revenue	18,000
Turn On Green [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue	192,000
Turn On Green [Member] | Goods Transferred At A Point In Time [Member]
Disaggregation of Revenue [Line Items]
Total revenue	5,346,000	5,416,000
Turn On Green [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Total revenue	4,536,000	4,500,000
Turn On Green [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Total revenue	457,000	450,000
Turn On Green [Member] | Middle East [Member]
Disaggregation of Revenue [Line Items]
Total revenue
Turn On Green [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue	353,000	466,000
D P Lending [Member]
Disaggregation of Revenue [Line Items]
Total revenue	192,000
Revenue lending and trading activities	16,854,000	242,000
Revenue from Contract with Customer, Including Assessed Tax	17,046,000	$ 242,000
D P Lending [Member] | Goods Transferred At A Point In Time [Member]
Disaggregation of Revenue [Line Items]
Total revenue	192,000
D P Lending [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Total revenue	192,000
Cryptocurrency [Member]
Disaggregation of Revenue [Line Items]
Total revenue	4,238,000
Revenue from Contract with Customer, Including Assessed Tax	4,238,000
Cryptocurrency [Member] | Digital Currency Mining [Member]
Disaggregation of Revenue [Line Items]
Total revenue	3,450,000
Cryptocurrency [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue	788,000
Cryptocurrency [Member] | Goods Transferred At A Point In Time [Member]
Disaggregation of Revenue [Line Items]
Total revenue	4,238,000
Cryptocurrency [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Total revenue	4,238,000
Real Estate One [Member]
Disaggregation of Revenue [Line Items]
Total revenue	189,000
Revenue from Contract with Customer, Including Assessed Tax	189,000
Real Estate One [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue	189,000
Real Estate One [Member] | Goods Transferred At A Point In Time [Member]
Disaggregation of Revenue [Line Items]
Total revenue	189,000
Real Estate One [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Total revenue	$ 189,000