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REVENUE DISAGGREGATION (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Disaggregation of Revenue [Line Items]        
Digital currency mining $ 16,423,000 $ 8,855,000 $ 31,328,000 $ 16,890,000
Revenue lending and trading activities 943,000 53,274,000 18,864,000 58,485,000
Total revenue 17,366,000 62,129,000 50,192,000 75,375,000
R F Microwave Filters [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 559,000 1,076,000 2,070,000 2,291,000
Detector Logarithmic Video Amplifiers [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 692,000 73,000 692,000 144,000
Power Supply Units [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 2,714,000 2,070,000 6,241,000 3,691,000
Power Supply Systems [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 609,000 2,475,000 657,000 4,708,000
Healthcare Diagnostic Systems [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 1,992,000 228,000 1,992,000 413,000
Electric Vehicle Chargers [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 46,000   79,000  
Defense Systems [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 953,000 2,383,000 4,208,000 4,791,000
Digital Currency Mining Net [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 3,976,000   7,524,000 421,000
Hotel Operations [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 4,598,000   7,296,000  
Other [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 284,000 259,000 569,000 431,000
Goods Transferred At A Point In Time [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 13,521,000 6,243,000 24,693,000 11,686,000
Services Transferred Over Time [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 2,902,000 2,612,000 6,635,000 5,204,000
Digital Currency Mining [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining   291,000    
North America [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 10,791,000 3,979,000 19,845,000 7,378,000
Europe [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 2,568,000 2,295,000 4,766,000 4,314,000
Middle East [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 3,064,000 2,581,000 6,717,000 5,198,000
G W W [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 6,503,000 6,475,000 13,748,000 12,825,000
Revenue lending and trading activities
Total revenue 6,503,000 6,475,000 13,748,000 12,825,000
Revenue from contracts with customers       2,825,000
G W W [Member] | R F Microwave Filters [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 559,000 1,076,000 2,070,000 2,291,000
G W W [Member] | Detector Logarithmic Video Amplifiers [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 692,000 73,000 692,000 144,000
G W W [Member] | Power Supply Units [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 1,698,000 240,000 4,129,000 478,000
G W W [Member] | Power Supply Systems [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 609,000 2,475,000 657,000 4,708,000
G W W [Member] | Healthcare Diagnostic Systems [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 1,992,000 228,000 1,992,000 413,000
G W W [Member] | Defense Systems [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 953,000 2,383,000 4,208,000 4,791,000
G W W [Member] | Goods Transferred At A Point In Time [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 3,601,000 3,863,000 7,113,000 7,621,000
G W W [Member] | Services Transferred Over Time [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 2,902,000 2,612,000 6,635,000 5,204,000
G W W [Member] | North America [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 1,111,000 2,140,000 2,622,000 4,029,000
G W W [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 2,540,000 1,842,000 4,719,000 3,752,000
G W W [Member] | Middle East [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 2,852,000 2,493,000 6,407,000 5,044,000
Turn On Green [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 1,062,000 1,830,000 2,191,000 3,213,000
Revenue lending and trading activities
Total revenue 1,062,000 1,830,000 2,191,000 3,213,000
Turn On Green [Member] | Power Supply Units [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 1,016,000 1,830,000 2,112,000 3,213,000
Turn On Green [Member] | Electric Vehicle Chargers [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 46,000   79,000  
Turn On Green [Member] | Goods Transferred At A Point In Time [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 1,062,000 1,830,000 2,191,000 3,213,000
Turn On Green [Member] | Services Transferred Over Time [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining
Turn On Green [Member] | North America [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 822,000 1,289,000 1,834,000 2,497,000
Turn On Green [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 28,000 453,000 47,000 562,000
Turn On Green [Member] | Middle East [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 212,000 88,000 310,000 154,000
Ault Alliance [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 12,000 550,000 19,000 852,000
Revenue lending and trading activities 943,000 53,274,000 18,864,000 58,485,000
Total revenue 955,000 53,824,000 18,883,000 59,337,000
Ault Alliance [Member] | Digital Currency Mining Net [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining       421,000
Ault Alliance [Member] | Other [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 12,000 259,000 19,000 431,000
Ault Alliance [Member] | Goods Transferred At A Point In Time [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 12,000 550,000 19,000 852,000
Ault Alliance [Member] | Services Transferred Over Time [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining
Ault Alliance [Member] | Digital Currency Mining [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining   291,000    
Ault Alliance [Member] | North America [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 12,000 550,000 19,000 852,000
Ault Alliance [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining
Ault Alliance [Member] | Middle East [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining
B N I [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 4,248,000   8,074,000  
Revenue lending and trading activities    
Total revenue 4,248,000   8,074,000  
B N I [Member] | Digital Currency Mining Net [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 3,976,000   7,524,000  
B N I [Member] | Other [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 272,000   550,000  
B N I [Member] | Goods Transferred At A Point In Time [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 4,248,000   8,074,000  
B N I [Member] | Services Transferred Over Time [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining    
B N I [Member] | North America [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 4,248,000   8,074,000  
B N I [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining    
B N I [Member] | Middle East [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining    
A G R E E [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 4,598,000   7,296,000  
Revenue lending and trading activities    
Total revenue 4,598,000   7,296,000  
A G R E E [Member] | Hotel Operations [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 4,598,000   7,296,000  
A G R E E [Member] | Goods Transferred At A Point In Time [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 4,598,000   7,296,000  
A G R E E [Member] | Services Transferred Over Time [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining    
A G R E E [Member] | North America [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining 4,598,000   7,296,000  
A G R E E [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining    
A G R E E [Member] | Middle East [Member]        
Disaggregation of Revenue [Line Items]        
Digital currency mining