STOCK-BASED COMPENSATION - Non-Vested Restricted Shares (Details) - $ / shares
9 Months Ended
Sep. 30, 2021
Nov. 26, 2019
Sep. 30, 2021
Shares      
Granted (in shares)   8,000  
Non employee      
Weighted Average Fair Value      
Outstanding (in dollars per share)     $ 18.80
Granted (in dollars per share)     0
Vested (in dollars per share)     0
Expired (in dollars per share)     0
Forfeited (in dollars per share)     0
Outstanding (in dollars per share) $ 18.80   $ 18.80
Restricted Shares | Non employee      
Shares      
Outstanding (in shares)     5,336
Granted (in shares)   2,000 0
Vested (in shares) (5,336)   0
Expired (in shares)     0
Forfeited (in shares)     0
Outstanding (in shares) 5,336   5,336