Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION (Details)

v3.20.4
STOCK-BASED COMPENSATION (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Jan. 07, 2021
Dec. 31, 2020
Sep. 30, 2020
Jul. 31, 2020
Jun. 30, 2020
Sep. 30, 2019
Dec. 31, 2020
Dec. 31, 2019
Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Stock compensation expense             $ 0.4 $ 0.3  
Stock options                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Weighted average value per share of stock option grants (in USD per share)             $ 0.95 $ 0.94  
Stock options                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of stock options granted (in shares)             390,000    
Weighted average value per share of stock option grants (in USD per share)             $ 1.74    
Unrecognized compensation cost   $ 0.5         $ 0.5    
Weighted-average period of unrecognized compensation cost expected to be recognized             1 year 10 months 24 days    
2015 Equity Incentive Plan                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Shares authorized for issuance                 2,500,000
Award terms             10 years    
Number of shares available for future issuance (in shares)   102,002         102,002    
2015 Equity Incentive Plan | Stock options                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of stock options granted (in shares)     10,000   330,000        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value     $ 1.96   $ 1.73        
Vesting period of remaining shares           3 years      
2015 Equity Incentive Plan | Director | Stock options                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of stock options granted (in shares)   2,000   16,000 32,000        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value   $ 3.73   $ 1.51 $ 1.73        
Vesting period of remaining shares   1 year   1 year 1 year        
Issuance of share based compensation (in shares)   1,675   15,894 13,872        
2015 Equity Incentive Plan | President And Chief Executive Officer | Stock options | Subsequent Event                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of stock options granted (in shares) 124,120                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value $ 3.93                
Vesting period of remaining shares 3 years                
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized 92,093                
2015 Equity Incentive Plan | President And Chief Executive Officer | Performance Shares [Member] | Subsequent Event                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of stock options granted (in shares) 69,975                
Vesting period of remaining shares 3 years                
Stock Based Awards, Incentive Marker 1, Percentage 10.00%                
Stock Based Awards, Incentive Marker 2, Percentage 12.00%                
2015 Equity Incentive Plan | President And Chief Executive Officer | Performance Shares [Member] | First anniversary                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting percentage 0.17%                
2015 Equity Incentive Plan | President And Chief Executive Officer | Performance Shares [Member] | Monthly after first anniversary                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting percentage 0.17%