v3.21.2
LIABILITIES AND DEBT - Promissory Note Payable (Details) - Promissory note payable - Notes Payable to Banks [Member] - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Debt Instrument [Line Items]    
Aggregate principal amount $ 4,500,000  
Interest rate of loans 12.00%  
Interest expense $ 135,000 $ 67,500