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Note 4 - Loans Receivable (Details Textual) Pure in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Financing Receivable, Unamortized Loan Cost (Fee)	$ 1,700,000	$ 1,600,000
Financing Receivable, Allowance for Credit Loss	10,032,000	8,129,000	$ 6,786,000	$ 6,715,000
Reserve for Uncollected Loan Interest	$ 241,000	$ 38,000
Financing Receivable, Modified, Number of Contracts	0
Unfunded Loan Commitment [Member] | Other Liabilities [Member]
Financing Receivable, Allowance for Credit Loss	$ 380,000

X

- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

X

- Definition

The amount of reserve for uncollected loan interest.

+ References

No definition available.

+ Details

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X

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

+ References

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

- Definition

Amount of unamortized loan commitment, origination, and other costs (fees) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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