Note 11 - Capital Ratios and Regulatory Minimum Requirements (Details) $ in Thousands	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)
The Company [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Capital	$ 228,020	$ 225,324
Tier 1 capital	178,416	176,033
Common equity tier 1 capital	178,416	176,033
Tier 1 leverage capital	$ 178,416	$ 176,033
Capital to risk-weighted assets	0.1565	0.1586
Tier 1 capital to risk-weighted assets	0.1224	0.1239
Common equity tier 1 capital to risk-weighted assets	12.24%	12.39%
Tier 1 leverage capital to average assets	0.0913	0.0902
Capital required for capital adequacy	$ 116,577	$ 113,675
Tier 1 capital required for capital adequacy	87,433	85,256
Common equity tier 1 capital required for capital adequacy	65,575	63,942
Tier 1 leverage capital required for capital adequacy	$ 78,177	$ 78,045
Capital required for capital adequacy to risk-weighted assets	0.0800	0.0800
Tier 1 capital required for capital adequacy to risk-weighted assets	0.0600	0.0600
Common equity tier 1 capital required for capital adequacy to risk-weighted assets	4.50%	4.50%
Tier 1 leverage capital required for capital adequacy to average assets	0.04	0.0400
Capital required to be well capitalized	$ 145,722	$ 142,093
Tier 1 capital required to be well capitalized	$ 87,433	$ 85,256
Capital required to be well capitalized to risk-weighted assets	0.1000	0.1000
Tier 1 capital required to be well capitalized to risk-weighted assets	0.0600	0.0600
Bank [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Capital	$ 202,448	$ 201,024
Tier 1 capital	192,844	191,733
Common equity tier 1 capital	192,844	191,733
Tier 1 leverage capital	$ 192,844	$ 191,733
Capital to risk-weighted assets	0.1391	0.1415
Tier 1 capital to risk-weighted assets	0.1325	0.1350
Common equity tier 1 capital to risk-weighted assets	13.25%	13.50%
Tier 1 leverage capital to average assets	0.0998	0.0994
Capital required for capital adequacy	$ 116,462	$ 113,623
Tier 1 capital required for capital adequacy	87,346	85,217
Common equity tier 1 capital required for capital adequacy	65,510	63,913
Tier 1 leverage capital required for capital adequacy	$ 77,265	$ 77,131
Capital required for capital adequacy to risk-weighted assets	0.0800	0.0800
Tier 1 capital required for capital adequacy to risk-weighted assets	0.0600	0.0600
Common equity tier 1 capital required for capital adequacy to risk-weighted assets	4.50%	4.50%
Tier 1 leverage capital required for capital adequacy to average assets	0.0400	0.0400
Capital required to be well capitalized	$ 145,577	$ 142,029
Tier 1 capital required to be well capitalized	116,462	113,623
Common equity tier 1 capital required to be well capitalized	94,625	92,319
Tier 1 leverage capital required to be well capitalized	$ 96,581	$ 96,414
Capital required to be well capitalized to risk-weighted assets	0.1000	0.1000
Tier 1 capital required to be well capitalized to risk-weighted assets	0.0800	0.0800
Common equity tier 1 capital required to be well capitalized to risk-weighted assets	6.50%	6.50%
Tier 1 leverage capital required to be well capitalized to average assets	0.0500	0.0500

Common equity tier 1 capital as defined in the regulations.

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The minimum common equity tier 1 capital (common equity divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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Amount of total capital as defined by regulatory framework.

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Amount of minimum total risk-based capital required for capital adequacy as defined by regulatory framework.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 505
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-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1B

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-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1

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