REVENUE DISAGGREGATION (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 14,905,000	$ 8,035,000
Revenue lending and trading activities	17,921,000	5,210,000
Total revenue	32,826,000	13,245,000
Revenue from contracts with customers	14,905,000	8,035,000
R F Microwave Filters [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,511,000	1,215,000
Power Supply Units [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,527,000	1,621,000
Power Supply Systems [Member]
Disaggregation of Revenue [Line Items]
Revenue	48,000	2,233,000
E V Chargers [Member]
Disaggregation of Revenue [Line Items]
Revenue	33,000
Defense Systems [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,255,000	2,408,000
Digital Currency Mining [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,548,000	130,000
Hotel Oprations [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,698,000
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	285,000	172,000
Goods Transferred at A Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue	11,172,000	5,443,000
Revenue from contracts with customers	14,905,000	8,035,000
Services Transferred Over Time [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,733,000	2,592,000
Detectorlogarithmicvideoamplifiers [Member]
Disaggregation of Revenue [Line Items]
Revenue		71,000
Healthcare Diagnostic Systems [Member]
Disaggregation of Revenue [Line Items]
Revenue		185,000
North America [Member]
Disaggregation of Revenue [Line Items]
Revenue	9,054,000	3,399,000
Europe [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,198,000	2,019,000
Middle East [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,254,000	2,389,000
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	399,000	228,000
G W W [Member]
Disaggregation of Revenue [Line Items]
Revenue	7,245,000	6,350,000
Total revenue	7,245,000	6,350,000
Revenue from contracts with customers	7,245,000	6,350,000
G W W [Member] | R F Microwave Filters [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,511,000	1,215,000
G W W [Member] | Power Supply Units [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,431,000	238,000
G W W [Member] | Power Supply Systems [Member]
Disaggregation of Revenue [Line Items]
Revenue	48,000	2,233,000
G W W [Member] | Defense Systems [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,255,000	2,408,000
G W W [Member] | Goods Transferred at A Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,512,000	3,758,000
Revenue from contracts with customers	7,245,000	6,350,000
G W W [Member] | Services Transferred Over Time [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,733,000	2,592,000
G W W [Member] | Detectorlogarithmicvideoamplifiers [Member]
Disaggregation of Revenue [Line Items]
Revenue		71,000
G W W [Member] | Healthcare Diagnostic Systems [Member]
Disaggregation of Revenue [Line Items]
Revenue		185,000
G W W [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,511,000	1,889,000
G W W [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,179,000	1,910,000
G W W [Member] | Middle East [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,254,000	2,389,000
G W W [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	301,000	162,000
Turn on Green [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,129,000	1,383,000
Total revenue	1,129,000	1,383,000
Revenue from contracts with customers	1,129,000	1,383,000
Turn on Green [Member] | Power Supply Units [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,096,000	1,383,000
Turn on Green [Member] | E V Chargers [Member]
Disaggregation of Revenue [Line Items]
Revenue	33,000
Turn on Green [Member] | Goods Transferred at A Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,129,000	1,383,000
Revenue from contracts with customers	1,129,000	1,383,000
Turn on Green [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,012,000	1,208,000
Turn on Green [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Revenue	19,000	109,000
Turn on Green [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	98,000	66,000
Ault Alliance [Member]
Disaggregation of Revenue [Line Items]
Revenue	7,000	302,000
Revenue lending and trading activities	17,921,000	5,210,000
Total revenue	17,928,000	5,512,000
Revenue from contracts with customers	7,000	302,000
Ault Alliance [Member] | Digital Currency Mining [Member]
Disaggregation of Revenue [Line Items]
Revenue		130,000
Ault Alliance [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	7,000	172,000
Ault Alliance [Member] | Goods Transferred at A Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue	7,000	302,000
Revenue from contracts with customers	7,000	302,000
Ault Alliance [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Revenue	7,000	$ 302,000
Cryptocurrency [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,826,000
Total revenue	3,826,000
Revenue from contracts with customers	3,826,000
Cryptocurrency [Member] | Digital Currency Mining [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,548,000
Cryptocurrency [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	278,000
Cryptocurrency [Member] | Goods Transferred at A Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,826,000
Revenue from contracts with customers	3,826,000
Cryptocurrency [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,826,000
Real Estate One [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,698,000
Total revenue	2,698,000
Revenue from contracts with customers	2,698,000
Real Estate One [Member] | Hotel Oprations [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,698,000
Real Estate One [Member] | Goods Transferred at A Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,698,000
Revenue from contracts with customers	2,698,000
Real Estate One [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 2,698,000