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Stock-based and Other Compensation (Details - Option Activity) - Equity Option [Member] - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]    
Options outstanding, beginning balance 41  
Weighted average exercise price, options outstanding, beginning balance $ 10.42  
Weighted average remaining contractual life, outstanding 1 year 11 months 19 days 2 years 2 months 15 days
Aggregate intrinsic value, options outstanding beginning $ 121  
Options granted 0  
Weighted average exercise price, options granted $ 0  
Options exercised 0  
Weighted average exercise price, options exercised $ 0  
Options forfeited 0  
Weighted average exercise price, options forfeited $ 0  
Options outstanding, ending balance 41 41
Weighted average exercise price, options outstanding, ending balance $ 10.42 $ 10.42
Aggregate intrinsic value, options outstanding ending $ 276 $ 121
Exercisable 41  
Weighted average exercise price, exercisable $ 10.42  
Weighted average remaining contractual life, exercisable 1 year 11 months 19 days  
Aggregate intrinsic value, options exercisable $ 276