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he Company’s disaggregated revenues consist of the following for the six months ended June 30, 2021 and 2020: (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     $ 16,890,000 $ 11,004,000
Revenue, lending and trading activities     58,485,000 2,000
Total revenue $ 62,129,000 $ 5,401,000 75,375,000 11,006,000
RF/Microwave Filters [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     2,291,000 2,546,000
Detector Logarithmic Video Amplifiers [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     144,000 878,000
Power Supply Units [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     3,691,000 2,428,000
Power Supply Systems [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     4,708,000 547,000
Healthcare Diagnostic Systems [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     413,000 523,000
Defense Systems [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     4,791,000 4,082,000
Digital Currency Mining [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     421,000  
Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     431,000  
Goods Transferred At A Point In Time [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     11,686,000 6,401,000
Services Transferred Over Time [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     5,204,000 4,605,000
North America [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     7,378,000 5,336,000
Europe [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     4,314,000 735,000
Middle East [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     4,896,000 4,605,000
Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     302,000 328,000
GWW [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     12,825,000 8,576,000
Revenue, lending and trading activities      
Total revenue     12,825,000 8,576,000
GWW [Member] | RF/Microwave Filters [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     2,291,000 2,546,000
GWW [Member] | Detector Logarithmic Video Amplifiers [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     144,000 878,000
GWW [Member] | Power Supply Units [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     478,000
GWW [Member] | Power Supply Systems [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     4,708,000 547,000
GWW [Member] | Healthcare Diagnostic Systems [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     413,000 523,000
GWW [Member] | Defense Systems [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     4,791,000 4,082,000
GWW [Member] | Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers      
GWW [Member] | Goods Transferred At A Point In Time [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     7,621,000 3,971,000
GWW [Member] | Services Transferred Over Time [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     5,204,000 4,605,000
GWW [Member] | North America [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     4,029,000 3,370,000
GWW [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     3,752,000 448,000
GWW [Member] | Middle East [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     4,896,000 4,605,000
GWW [Member] | Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     148,000 153,000
Coolisys [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     3,213,000 3,213,000
Revenue, lending and trading activities      
Total revenue     3,213,000 2,428,000
Coolisys [Member] | RF/Microwave Filters [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
Coolisys [Member] | Detector Logarithmic Video Amplifiers [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
Coolisys [Member] | Power Supply Units [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     3,213,000 2,428,000
Coolisys [Member] | Power Supply Systems [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
Coolisys [Member] | Healthcare Diagnostic Systems [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
Coolisys [Member] | Defense Systems [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
Coolisys [Member] | Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers      
Coolisys [Member] | Goods Transferred At A Point In Time [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     3,213,000 2,428,000
Coolisys [Member] | Services Transferred Over Time [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
Coolisys [Member] | North America [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     2,497,000 1,966,000
Coolisys [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     562,000 287,000
Coolisys [Member] | Middle East [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
Coolisys [Member] | Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     154,000 175,000
8% Short Term Promissory Note [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     852,000
Revenue, lending and trading activities     58,485,000 2,000
Total revenue     59,337,000 2,000
8% Short Term Promissory Note [Member] | RF/Microwave Filters [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
8% Short Term Promissory Note [Member] | Detector Logarithmic Video Amplifiers [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
8% Short Term Promissory Note [Member] | Power Supply Units [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
8% Short Term Promissory Note [Member] | Power Supply Systems [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
8% Short Term Promissory Note [Member] | Healthcare Diagnostic Systems [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
8% Short Term Promissory Note [Member] | Defense Systems [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
8% Short Term Promissory Note [Member] | Digital Currency Mining [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     421,000  
8% Short Term Promissory Note [Member] | Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     431,000  
8% Short Term Promissory Note [Member] | Goods Transferred At A Point In Time [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     852,000 2,000
8% Short Term Promissory Note [Member] | Services Transferred Over Time [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
8% Short Term Promissory Note [Member] | North America [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers     852,000
8% Short Term Promissory Note [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
8% Short Term Promissory Note [Member] | Middle East [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers    
8% Short Term Promissory Note [Member] | Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers