Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY - Warrant Activity (Details)

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STOCKHOLDERS' EQUITY - Warrant Activity (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2021
Number of Warrants      
Outstanding, beginning of the period (in shares)   6,167,745 6,167,745
Issued (in shares)     867,286
Exercised (in shares) 112,647 (2,169,021) (2,281,668)
Outstanding, end of the period (in shares) 4,753,363   4,753,363
Exercisable (in shares) 4,753,363   4,753,363
Weighted Average Exercise Price      
Outstanding, beginning of the period (in dollars per share)   $ 5.26 $ 5.26
Issued (in dollars per share)     5.50
Exercised (in dollars per share)     5.04
Outstanding, end of the period (in dollars per share) $ 5.42   5.42
Exercisable (in dollars per share) $ 5.35   $ 5.35
Weighted Average Remaining Life, Outstanding (in years)     4 years 1 month 6 days
Weighted Average Remaining Life, Exercisable (in years)     4 years 1 month 6 days
Intrinsic Value, Outstanding (in dollars) $ 1,531,119   $ 1,531,119
Intrinsic Value, Exercisable (in dollars) $ 1,531,119   $ 1,531,119
Warrants to purchase shares of common stock     368,711
Exercise price of warrants (in dollars per share) $ 5.50 $ 5.50 $ 5.50