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Summary of Significant Accounting Policies (Details - Options outstanding and exercisable) - shares
shares in Thousands
Jun. 30, 2025
Dec. 31, 2024
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Number of shares, outstanding 4,832 6,097
Number of shares, exercisable 4,189 5,087
$2.00 - $2.99 [Member]    
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Number of shares, outstanding 1,128 1,197
Number of shares, exercisable 1,127 1,197
$3.00 - $3.99 [Member]    
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Number of shares, outstanding 902 2,026
Number of shares, exercisable 902 2,026
$4.00 - $4.99 [Member]    
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Number of shares, outstanding 1,190 1,262
Number of shares, exercisable 907 972
$10.00 - $10.99 [Member]    
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Number of shares, outstanding 1,612 1,612
Number of shares, exercisable 1,253 892