Note 7 - Loans Receivable and Credit Disclosures (Details Textual) $ in Thousands	3 Months Ended
Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)	$ 63
Financing Receivable, Nonaccrual	$ 11,400		$ 14,700
Financing Receivable, Modified, Number of Contracts	3
Financing Receivable, Modified, Subsequent Default, Number of Contracts	0
Financing Receivable, Modified, Accumulated			$ 10,700
Number Of Restructured Loans Granting Concessions	0
Financing Receivable, Modified, Increase (Decrease) from Modification	$ 0
Foregone Interest on Real Estate Loan [Member]
Financing Receivable, Nonaccrual, Interest Income	$ 179	$ 143

Number of financing receivables that have been modified.

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- Definition

Number of financing receivable contracts modified within previous 12 months, with subsequent payment default.

+ References

No definition available.

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- Definition

The number of restructured loans granting concessions to borrowers experiencing financial difficulties.

+ References

No definition available.

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- Definition

Accumulated amortized cost of financing receivable modified for debtor experiencing financial difficulty.

+ References

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-Topic 310
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-Name Accounting Standards Codification
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- Definition

Amount of interest income on financing receivable on nonaccrual status.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Section 50
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- Definition

Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

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- Definition

Amount of increase (decrease) in amortized cost of financing receivable modified for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

+ References

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