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Note 4 - Allowance for Credit Losses - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Nonaccrual, No Allowance	$ 1,591
Nonaccrual, With Allowance	0
Non-accrual loans	1,591	$ 2,673
Real Estate 1 [Member] | Construction and Land Development [Member]
Nonaccrual, No Allowance	1,044
Nonaccrual, With Allowance	0
Non-accrual loans	1,044	1,045
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member]
Nonaccrual, No Allowance	474
Nonaccrual, With Allowance	0
Non-accrual loans	474	530
Real Estate 1 [Member] | Other Real Estate Loans [Member]
Nonaccrual, No Allowance	73
Nonaccrual, With Allowance	0
Non-accrual loans	73	13
Commercial and Industrial Loans [Member]
Nonaccrual, No Allowance	0
Nonaccrual, With Allowance	0
Non-accrual loans	$ 0	$ 1,085

X

- Definition

Amortized cost of financing receivable on nonaccrual status with allowance for credit loss. Excludes net investment in lease.

+ References

No definition available.

+ Details

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X

- Definition

Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. 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
-Subparagraph (d)
-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
-Subparagraph (a)
-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
-Section 1405
-Paragraph (a)
-Subparagraph (3)
-Publisher SEC

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (2)
-Publisher SEC

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-7

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