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Note 13 - Commitments and Off-balance-sheet Risk (Details Textual) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Reserve or Liability Balance for Financial Instruments With Off Balance Sheet Risk | $ 0 | $ 0
Term Debt, Secured by Real Estate Balloon Payment, Period (Year) | 5 years |
Minimum [Member] |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Interest Rate | 3.00% |
Amortization Period for Term Debt, Secured by Real Estate (Year) | 10 years |
Interest Rates on Loans, Secured by Non-real Estate Collateral | 3.50% |
Term Debt Secured, by Non-real Estate Collateral Maturity Period (Year) | 3 years |
Maximum [Member] |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Interest Rate | 5.00% |
Amortization Period for Term Debt, Secured by Real Estate (Year) | 20 years |
Interest Rates on Loans, Secured by Non-real Estate Collateral | 5.00% |
Term Debt Secured, by Non-real Estate Collateral Maturity Period (Year) | 7 years |

X
- Definition Amortization period for the payments related to a credit facility, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Stated interest rates on loans that are secured by non-real estate collateral. + References No definition available. + Details
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- Definition The carrying amount for the reserve or liability for financial instruments with off-balance sheet risk. + References No definition available. + Details
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- Definition Period of time between issuance and maturity of term debt secured by non-real estate collateral, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Interest rate of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Paragraph Column B -Subsection 29 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column B)) -URI http://asc.fasb.org/extlink&oid=120402547&loc=d3e617274-123014 + Details
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