Annual report pursuant to Section 13 and 15(d)

STOCK BASED COMPENSATION - Stock Incentive Plan (Details)

v3.20.4
STOCK BASED COMPENSATION - Stock Incentive Plan (Details)
$ in Thousands
1 Months Ended 12 Months Ended
Sep. 28, 2020
USD ($)
Dec. 31, 2020
USD ($)
shares
Jul. 31, 2020
USD ($)
employee
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
shares
Dec. 31, 2018
shares
Dec. 31, 2015
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period       1 year      
Number of employees affected by repricing | employee     116        
Expenses recognized | $     $ 3,600        
Granted (in shares)       8,463,000      
Unrecognized stock-based compensation expense, stock options | $   $ 13,700   $ 13,700 $ 13,000    
Weighted-average period       2 years 9 months 18 days      
Shares available for grant   14,379,052   14,379,052      
Compensation expenses | $ $ 1,800     $ 8,006 $ 5,215    
Consultant              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Granted (in shares)       12,212 119,581    
Fair value of shares | $       $ 100 $ 600    
Employee              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Granted (in shares)       8,450,799 5,730,586    
Fair value of shares | $       $ 29,800 $ 10,100    
2015 stock incentive plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Awards made under the plan             26,283,789
Vesting period             4 years
Expiration period             10 years
Make Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period           4 years  
Expiration period           10 years  
Options and warrants to be issued           232,304  
Granted (in shares)           0  
2020 Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Common stock available for future issuance   12,400,813   12,400,813      
Percentage of stock outstanding   5.00%