11. STOCK BASED COMPENSATION (Details - Restricted stock) - Restricted Stock [Member] shares in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2019
$ / shares
shares
| |
| Number of shares | |
| Restricted stock outstanding, beginning balance | shares | 258 |
| Restricted stock granted | shares | 408 |
| Restricted stock vested | shares | (180) |
| Restricted stock cancelled | shares | 486 |
| Weighted-Average Grant Date Fair Value | |
| Restricted stock outstanding, beginning balance | $ / shares | $ 6.04 |
| Restricted stock granted | $ / shares | 3.90 |
| Restricted stock vested | $ / shares | 5.37 |
| Restricted stock outstanding, ending balance | $ / shares | $ 4.50 |