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Note 1 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 USD ($) shares | Dec. 31, 2021 USD ($) | Dec. 31, 2020
Number Of Limited Partnerships In Housing Investments |  |  | 10
Percentage of Subsidiaries Common Securities Owned by Parent Company |  |  | 100.00%
Gross Loans Comprised of Commercial Mortgage Loans Percentage | 48.20% |  |
Residential Mortgages Properties Percentage | 28.80% |  |
Gross Loans Comprised of Commercial Loans Percentage | 18.20% |  |
Federal Home Loan Bank Stock | $ | $ 17,250 | $ 17,250 |
Federal Home Loan Bank Stock Shares (in shares) | shares | 172,500 |  |
Minimum Stock Requirement on Outstanding Federal Home Loan Bank Borrowings Shares (in shares) | shares | 150,000 |  |
Variable Interest Entity, Primary Beneficiary, Number of Entities | 10 |  |
Goodwill, Impairment Loss | $ | $ 0 | $ 0 |
Number of Reportable Segments | 1 |  |
California [Member] |  |  |
Residential Mortgages Properties Percentage | 47.30% |  |

X
- Definition This represents the Federal Home Loan Bank (FHLB) shares owned by the Company as of the balance sheet date. FHLB stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). + References No definition available. + Details
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- Definition Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 325 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=123599499&loc=d3e63345-112809 + Details
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