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OTHER ASSETS (Details) - Schedule of Other Assets - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
OTHER ASSETS (Details) - Schedule of Other Assets [Line Items]      
Investments Balance $ 189,000 $ 205,000 $ 212,000
Other changes (16,000)    
Investment 0 186,000  
Net investment losses during the year 0 (193,000)  
Zowie Technology [Member]      
OTHER ASSETS (Details) - Schedule of Other Assets [Line Items]      
Investments Balance 186,000 186,000 193,000
Other changes 0    
Investment   186,000  
Net investment losses during the year   (193,000)  
Other Investments [Member]      
OTHER ASSETS (Details) - Schedule of Other Assets [Line Items]      
Investments Balance 3,000 19,000 $ 19,000
Other changes $ (16,000)    
Investment   0  
Net investment losses during the year   $ 0