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NOTES PAYABLE - 15% Notes (Details)
1 Months Ended 2 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2020
USD ($)
shares
Mar. 31, 2020
USD ($)
EquityInstruments
$ / shares
shares
Mar. 31, 2021
USD ($)
Mar. 31, 2020
USD ($)
$ / shares
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
Dec. 23, 2020
Jan. 08, 2020
USD ($)
Sep. 30, 2019
NOTES PAYABLE                  
Repayment of notes         $ 2,106,000 $ 5,898,000      
Exercise price of warrants | $ / shares   $ 1.00   $ 1.00          
Number of shares issued by each warrant | shares   1   1          
Debt principal amount converted         957,056        
Additional paid-in capital $ 75,891,414       75,891,414 61,468,034      
Deemed dividends         $ 830,494 2,341,000      
Warrant cashless exercises, Shares | shares         259,415        
Mortgage Loan                  
NOTES PAYABLE                  
Aggregate principal amount               $ 975,000  
15% Notes [Member]                  
NOTES PAYABLE                  
Aggregate principal amount   $ 2,031,000   $ 2,031,000   $ 300,000      
Interest rate (as a percent) 15.00%       15.00% 15.00%      
Face amount of debt exchanged           $ 1,000,000.0      
Repayment of notes $ 2,100,000   $ 200,000            
Proceeds from debt   525,000   525,000   300,000      
Repayment limit for full payment   $ 5,000,000              
Number of warrants issued | EquityInstruments   3              
Debt principal amount converted         $ 250,000        
Number of warrants issued upon conversion | shares   6,993,000              
Additional paid-in capital 3,653       3,653        
Amortization of debt discount         279,676 2,883      
15% Notes [Member] | Extinguishment of debt                  
NOTES PAYABLE                  
Additional paid-in capital 668,335       668,335        
10% Notes                  
NOTES PAYABLE                  
Aggregate principal amount $ 2,940,000       $ 2,940,000        
Interest rate (as a percent) 10.00%       10.00%   10.00%    
Amortization of debt discount         $ 2,944 0      
10% Notes | Extinguishment of debt                  
NOTES PAYABLE                  
Additional paid-in capital $ 131,000       131,000        
12% Notes 2019 [Member]                  
NOTES PAYABLE                  
Aggregate principal amount   $ 1,506,000   $ 1,506,000          
Interest rate (as a percent)                 12.00%
Amortization of debt discount         $ 12,635 $ 23,432      
Warrant A 2020                  
NOTES PAYABLE                  
Number of warrants issued upon conversion | shares         250,000        
Warrants exercised | shares 1,131,000       1,131,000        
Shares issued in cashless exercise of warrants | shares 282,813                
Warrant B 2020                  
NOTES PAYABLE                  
Number of warrants issued upon conversion | shares         250,000        
Warrant C 2020                  
NOTES PAYABLE                  
Number of warrants issued upon conversion | shares         250,000        
15% Warrants                  
NOTES PAYABLE                  
Interest rate (as a percent) 15.00% 15.00%   15.00% 15.00% 15.00%      
Exercise price of warrants | $ / shares   $ 0.45   $ 0.45          
15% Warrants | Debt discount                  
NOTES PAYABLE                  
Additional paid-in capital $ 333,056       $ 333,056        
Common Stock awards                  
NOTES PAYABLE                  
Warrant cashless exercises, Amount         $ 33,961        
Warrant cashless exercises, Shares | shares         259,415