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Note 7 - Loans Receivable and Credit Disclosures (Details Textual) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)	$ 40		$ 23
Financing Receivable, Nonaccrual	11,300		$ 11,300		$ 11,300	$ 14,700
Financing Receivable, Modified, Number of Contracts			3
Financing Receivable, Modified, Subsequent Default, Number of Contracts			0		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	$ 166	$ 168	$ 345	$ 311

X

- Definition

Number of financing receivables that have been modified.

+ References

No definition available.

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- Definition

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

+ References

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X

- Definition

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

+ References

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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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
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-16

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-16

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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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
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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Reference 3: 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

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