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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, 2023 | Sep. 30, 2022
Equity, Class of Treasury Stock [Line Items] |  |
Total stock purchases, shares | 1,850,560 | 3,510,701
Total stock purchases, average price | $ 11.80 | $ 11.80
Open Market Purchases [Member] |  |
Equity, Class of Treasury Stock [Line Items] |  |
Total stock purchases, shares | 625,887 | 2,617,548
Total stock purchases, average price | $ 11.20 | $ 11.20
Shares Redeemed [Member] |  |
Equity, Class of Treasury Stock [Line Items] |  |
Total stock purchases, shares | 1,224,673 | 893,153
Total stock purchases, average price | $ 13.56 | $ 13.56

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