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(7) Shareholders' Equity (Details - Stock purchases) - Common Stock [Member] - $ / shares | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Equity, Class of Treasury Stock [Line Items] |  |
Total stock purchases, shares | 4,139,664 | 3,884,876
Total stock purchases, average price per share | $ 11.11 | $ 3.97
Open Market Purchases [Member] |  |
Equity, Class of Treasury Stock [Line Items] |  |
Total stock purchases, shares | 3,246,511 | 1,639,138
Total stock purchases, average price per share | $ 10.44 | $ 6.98
Shares Redeemed [Member] |  |
Equity, Class of Treasury Stock [Line Items] |  |
Total stock purchases, shares | 893,153 | 245,743
Total stock purchases, average price per share | $ 13.56 | $ 6.95
Other Share Repurchases [Member] |  |
Equity, Class of Treasury Stock [Line Items] |  |
Total stock purchases, shares | 0 | 1,999,995
Total stock purchases, average price per share | $ 0 | $ 6.26

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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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