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Shareholders' Equity (Details - Stock purchases) - Common Stock [Member] - $ / shares
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Share Repurchase Program [Line Items]    
Total stock purchases, shares 1,469,658 1,976,356
Total stock purchases, average price per share $ 8.73 $ 10.26
Open Market Purchases [Member]    
Share Repurchase Program [Line Items]    
Total stock purchases, shares 473,202 670,968
Total stock purchases, average price per share $ 8.67 $ 10.20
Shares Redeemed [Member]    
Share Repurchase Program [Line Items]    
Total stock purchases, shares 876,456 1,305,388
Total stock purchases, average price per share $ 8.66 $ 10.29
Other Share Repurchases [Member]    
Share Repurchase Program [Line Items]    
Total stock purchases, shares 120,000 0
Total stock purchases, average price per share $ 9.49 $ 0