Annual report pursuant to Section 13 and 15(d)

NOTES PAYABLE - Note Payable to Related Parties (Details)

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NOTES PAYABLE - Note Payable to Related Parties (Details) - USD ($)
 12 Months Ended
Aug. 14, 2020
Jul. 28, 2020
Dec. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]        
Accrued interest of notes payable converted to common stock $ 304,090      
Warrants to purchase shares of common stock 1,322,881   1,235,977  
Warrants term (in years) 5 years     5 years
Number of shares of common stock issued upon conversion 1,322,881      
Exercise price of warrants (in dollars per share) $ 5.50   $ 5.50 $ 5.50
Proceeds in connection with note payable     $ 835,000  
Holders of notes payable        
Debt Instrument [Line Items]        
Accrued interest of notes payable converted to common stock $ 6,048      
Warrants to purchase shares of common stock 138,209      
Warrants term (in years) 5 years      
Number of shares of common stock issued upon conversion 138,209      
Exercise price of warrants (in dollars per share) $ 5.50   $ 4.95  
Chief Executive Officer        
Debt Instrument [Line Items]        
Interest on related party notes payable   0.17%    
Proceeds in connection with note payable   $ 150,000    
Executive Officer        
Debt Instrument [Line Items]        
Proceeds in connection with note payable       $ 29,905
Repayment of related party notes payable     $ 29,000 $ 905
Placement agent warrants        
Debt Instrument [Line Items]        
Warrants to purchase shares of common stock 118,965      
Warrants term (in years) 5 years      
Exercise price of warrants (in dollars per share) $ 5.50