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RELATED PARTY TRANSACTIONS (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Mar. 31, 2021
Dec. 31, 2019
Related Party Transaction [Line Items]      
Cash and cash equivalents $ 109   $ 109
Interest rate 1.53%    
Executed lines of credit to Company executives      
Related Party Transaction [Line Items]      
Outstanding balance $ 809 $ 0 $ 809
Total lines of credit that can be drawn by executives 940    
Loans to Company executives      
Related Party Transaction [Line Items]      
Outstanding balance $ 353 $ 0