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RELATED PARTY TRANSACTIONS (Details)
3 Months Ended 12 Months Ended
Dec. 23, 2020
USD ($)
item
Jun. 03, 2020
USD ($)
Mar. 31, 2021
USD ($)
ft²
Mar. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
ft²
Jun. 01, 2020
USD ($)
Dec. 31, 2019
USD ($)
RELATED PARTY TRANSACTIONS              
Number of board members | item 5            
Accrued interest earned and owed     $ 9,500   $ 1,000    
Related party note payable              
RELATED PARTY TRANSACTIONS              
Aggregate amount $ 340,000   340,000   340,000   $ 100,000
10% Notes              
RELATED PARTY TRANSACTIONS              
Aggregate amount     $ 4,260,000   $ 2,600,000    
Interest rate (as a percent) 10.00%   10.00%   10.00%   10.00%
Consulting agreement              
RELATED PARTY TRANSACTIONS              
Initial monthly consulting fees paid   $ 8,333          
Aggregate amount of consulting fees paid     $ 24,999 $ 0 $ 58,333    
Subscription agreement              
RELATED PARTY TRANSACTIONS              
Outstanding balances of existing holders for which the Company will seek an extended maturity date           $ 2,331,000  
Lease agreement              
RELATED PARTY TRANSACTIONS              
Leased space (in sq ft) | ft²     17,000   17,000    
Monthly rent expenses     $ 34,636   $ 33,680    
Monthly rent attributable to base rent     30,900   30,000    
Monthly rent attributable to property taxes     3,736   3,680    
Aggregate rent expense     $ 115,000 $ 0 286,000    
Notes payable              
RELATED PARTY TRANSACTIONS              
Notes payable amount included in 15% Notes         100,000    
Interest paid on notes payable to related party         $ 15,000