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Summary of Significant Accounting Policies (Details - Stock purchases) - Common Stock [Member] - $ / shares | 9 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024
Share Repurchase Program [Line Items] |  |
Total stock purchases, shares | 641,299 | 1,469,658
Total stock purchases, average price | $ 9.54 | $ 8.73
Open Market Purchases [Member] |  |
Share Repurchase Program [Line Items] |  |
Total stock purchases, shares | 89,362 | 473,202
Total stock purchases, average price | $ 9.48 | $ 8.67
Shares Redeemed [Member] |  |
Share Repurchase Program [Line Items] |  |
Total stock purchases, shares | 451,937 | 876,456
Total stock purchases, average price | $ 9.76 | $ 8.66
Other [Member] |  |
Share Repurchase Program [Line Items] |  |
Total stock purchases, shares | 100,000 | 120,000
Total stock purchases, average price | $ 8.62 | $ 9.49

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