General form of registration statement for all companies including face-amount certificate companies

CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY - The activity for stock subject to vesting (Details)

v3.20.4
CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY - The activity for stock subject to vesting (Details) - $ / shares
9 Months Ended 12 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Shared subject to vesting    
Balance at end of period, unvested shares (in shares) 459,000  
Restricted stock    
Shared subject to vesting    
Balance at beginning of period, unvested shares (in shares) 4,575,313 9,731,550
Issuance of additional shares (in shares)   497,000
Vested (in shares) (4,301,000) (5,653,000)
Balance at end of period, unvested shares (in shares) 274,467 4,575,313
Weighted Average Grant Date Fair Value    
Balance at beginning of Period, unvested shares (in dollars per share) $ 0.0001 $ 0.0001
Issuance of additional shares (in dollars per share)   0.0001
Vested (in dollars per share) 0.0010 0.0001
Balance at end of Period, unvested shares (in dollars per share) $ 0.0010 $ 0.0001