XML 21 R72.htm IDEA: XBRL DOCUMENT v3.20.1
STOCK BASED COMPENSATION - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2017
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock reserved for new awards (in shares)   3,360,000    
Common stock available for grant (in shares)   2,100,065   2,332,775
RSUs and RSAs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 3 years      
Stock-based compensation expense   $ 903 $ 838  
Fair value of awards vested   2,500 $ 2,500 $ 5,700
Unrecognized compensation expense   $ 5,300   $ 3,500
Restricted stock awards or units granted (in shares)   580,887   582,940
Period of recognition for unrecognized compensation expense   2 years   1 year 7 months 10 days
RSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock units vested (in shares)   165,185   135,059
Forfeited (in shares)   1,468 0 0
Non-employee directors | Restricted Stock Awards        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   1 year    
Minimum | Employees | Restricted Stock Awards        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   3 years    
Maximum | Employees | Restricted Stock Awards        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   4 years