Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION (Details - Option activity)

v3.21.2
STOCK-BASED COMPENSATION (Details - Option activity) - Equity Option - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2021
Jun. 30, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Options outstanding, beginning balance (shares) 25,225 25,225  
Options outstanding, granted (shares)   6,550  
Options outstanding, exercised (shares)   (2)  
Options outstanding, forfeited (shares)   (440)  
Options outstanding, ending balance (shares)   31,333  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]      
Weighted average exercise price, beginning balance (in USD per share) $ 0.48 $ 0.48  
Weighted average exercise price, granted (in USD per share)   0.55  
Weighted average exercise price, exercised (in USD per share)   0.26  
Weighted average exercise price, forfeited (in USD per share)   0.58  
Weighted average exercise price, ending balance (in USD per share)   $ 0.50  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]      
Options outstanding, exercisable (shares)   23,829  
Options outstanding, vested or expected to vest (shares)   31,333  
Weighted average exercise price, exercisable (in USD per share)   $ 0.47  
Weighted average exercise price, vested or expected to vest (in USD per share)   $ 0.50  
Weighted average remaining contract term 5 years 8 months 12 days 6 years 1 month 6 days  
Weighted average remaining contract term, exercisable   5 years 1 month 6 days  
Weighted average remaining contract term, vested or expected to vest   6 years 1 month 6 days  
Aggregate intrinsic value   $ 378 $ 2,186
Aggregate intrinsic value, exercisable   354  
Aggregate intrinsic value, vested or expected to vest   $ 378