Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION (Details)

v3.22.0.1
STOCK-BASED COMPENSATION (Details)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
May 19, 2021
shares
May 31, 2021
item
shares
Jan. 31, 2021
shares
May 31, 2017
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Dec. 31, 2020
$ / shares
Dec. 31, 2019
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Weighted average grant date fair value of stock options (in dollars per share) | $ / shares         $ 5.68 $ 0.95 $ 0.94
Stock options              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Weighted average exercise price, Options exercisable (in dollars per share) | $ / shares         $ 1.67    
Number of stock options granted (in shares)         315,620    
Unrecognized compensation cost | $         $ 1.5    
Weighted-average period of unrecognized compensation cost expected to be recognized         2 years 1 month 6 days    
Restricted and performance shares              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Unrecognized compensation cost | $         $ 0.5    
Weighted-average period of unrecognized compensation cost expected to be recognized         1 year 3 months 18 days    
2015 Equity Incentive Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares authorized for issuance 4,500,000     2,500,000      
Award terms       10 years      
Increase in number of shares available for issuance 2,000,000            
Number of shares available for future issuance (in shares)         1,740,478    
2015 Equity Incentive Plan | Restricted stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period of remaining shares 1 year            
Shares granted 31,512            
2015 Equity Incentive Plan | Performance shares | Tranche One              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting rights, percentage         33.33%    
2015 Equity Incentive Plan | Chief Executive Officer | Performance shares              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares granted     69,975        
2015 Equity Incentive Plan | Three Company Executives | Performance shares              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares granted   20,750          
Number Of Executives | item   3