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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Stock-Based Compensation (Details) - shares
9 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Stock options    
Share Based Compensation    
Outstanding options (in shares) 242,187 189,187
Restricted stock awards    
Share Based Compensation    
Outstanding awards (in shares) 12,666 10,450
2019 Plan    
Share Based Compensation    
Award expiry period 10 years  
Number of shares remaining available for issuance (in shares) 1,079,982  
2019 Plan | Minimum    
Share Based Compensation    
Award vesting period 1 year  
2019 Plan | Maximum    
Share Based Compensation    
Award vesting period 4 years  
2019 Plan | Stock options    
Share Based Compensation    
Outstanding options (in shares) 242,187  
2019 Plan | Restricted stock awards    
Share Based Compensation    
Outstanding awards (in shares) 12,666