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STOCKHOLDERS' EQUITY (Details - Restricted stock award activity) - Restricted Stock [Member]
6 Months Ended
Jun. 30, 2024
$ / shares
shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]  
Nonvested shares, Beginning balance | shares 1,238
Weighted-average grant-date fair value, Beginning balance | $ / shares $ 20.17
Nonvested shares, Vested | shares (620)
Weighted-average grant-date fair value, Vested | $ / shares $ 10.09
Nonvested shares, Ending balance | shares 618
Weighted-average grant-date fair value, Ending balance | $ / shares $ 20.17