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OTHER LONG-TERM LIABILITIES (Details) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
OTHER LONG-TERM LIABILITIES    
Technology Investment Agreement (TIA) $ 31,378,662 $ 22,444,324
Stock repurchase 1,004,888 2,034,373
Total $ 32,383,550 $ 24,478,697