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PREFERRED STOCK AND DETACHABLE WARRANTS - Narrative (Details)
3 Months Ended
Jun. 24, 2020
Mar. 31, 2021
USD ($)
$ / shares
shares
Mar. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
$ / shares
shares
Class of Stock        
Preferred stock, shares authorized (in shares)   50,000,000   50,000,000
Preferred stock, par value (in dollars per share) | $ / shares   $ 0.001    
Liabilities at fair value | $   $ 1,004,680   $ 330,412
Dividends payable | $   $ (258,138) $ 344,499  
Liability | Expected Dividend Rate        
Class of Stock        
Warrant measurement input (as a percent)   0    
Series A Preferred Stock        
Class of Stock        
Preferred stock, shares authorized (in shares)   5,000,000   5,000,000
Preferred stock, par value (in dollars per share) | $ / shares   $ 0.001   $ 0.001
Preferred stock, shares issued (in shares)   419,859   419,859
Preferred stock, shares outstanding (in shares)   419,859   419,859
Series B Preferred Stock        
Class of Stock        
Temporary equity, shares authorized (in shares)   10,000,000   10,000,000
Temporary equity, shares outstanding (in shares)   2,035,666   4,102,690
Temporary equity, shares issued (in shares)   2,035,666   4,102,690
Dividends payable | $   $ 157,778   $ 317,970
Dividends paid in kind | $   $ 317,970 177,921  
Preferred stock, dividend percentage (as a percent) 10.00%      
Series B Preferred Stock | Liability | Risk Free Interest Rate        
Class of Stock        
Warrant measurement input (as a percent)   0.0006    
Series B Preferred Stock | Liability | Minimum | Expected Volatility Rate        
Class of Stock        
Warrant measurement input (as a percent)   0.66    
Series B Preferred Stock | Liability | Maximum | Expected Volatility Rate        
Class of Stock        
Warrant measurement input (as a percent)   1.14    
Series B1 Preferred Stock        
Class of Stock        
Temporary equity, shares authorized (in shares)   17,000,000   17,000,000
Temporary equity, shares outstanding (in shares)   5,497,450   7,399,649
Temporary equity, shares issued (in shares)   5,497,450   7,399,649
Dividends payable | $   $ 214,405   $ 288,594
Dividends paid in kind | $   $ 288,594 $ 211,269  
Preferred stock, dividend percentage (as a percent) 10.00%      
Series B1 Preferred Stock | Liability        
Class of Stock        
Expected term (years)   9 months    
Series B1 Preferred Stock | Liability | Minimum | Expected Volatility Rate        
Class of Stock        
Warrant measurement input (as a percent)   0.66    
Series B1 Preferred Stock | Liability | Maximum | Expected Volatility Rate        
Class of Stock        
Warrant measurement input (as a percent)   1.14