Annual report pursuant to Section 13 and 15(d)

STOCKHOLDERS' EQUITY - Warrant Activity (Details)

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STOCKHOLDERS' EQUITY - Warrant Activity (Details) - USD ($)
 12 Months Ended
Aug. 14, 2020
Dec. 31, 2020
Dec. 31, 2019
Number of Warrants, Activity, Roll Forward [Abstract]      
Outstanding, beginning of the period (in shares)   1,138,557  
Issued (in shares)   5,031,188  
Exercised (in shares)   (2,000)  
Outstanding, end of the period (in shares) [1]   6,167,745  
Exercisable (in shares)   5,866,275.0  
Warrants, Weighted Average Exercise Price, Roll Forward [Abstract]      
Outstanding, beginning of the period (in dollars per share)   $ 4.95  
Issued (in dollars per share)   5.33  
Warrant adjustment (in dollars per share) [2]   (0.89)  
Exercised (in dollars per share)   5.50  
Outstanding, end of the period (in dollars per share) [1]   5.26  
Exercisable (in dollars per share)   $ 5.21  
Weighted Average Remaining Life, Outstanding (in years) [1]   4 years 3 months 18 days  
Weighted Average Remaining Life, Exercisable (in years)   4 years 3 months 18 days  
Intrinsic Value, Outstanding (in dollars) [1]   $ 2,173,571  
Intrinsic Value, Exercisable (in dollars)   $ 2,173,571  
Warrants to purchase shares of common stock 1,322,881 1,235,977  
Exercise price of warrants (in dollars per share) $ 5.50 $ 5.50 $ 5.50
[1] Excludes five-year warrants to purchase 1,235,977 shares of common stock at an exercise price of $5.50 per share that are issuable upon exercise of certain warrants. See Note 5 - Notes Payable for additional details.
[2] Effect of down round triggered in connection with closing of IPO. See Note 6 - Notes Payable for additional details.