Note 2 - Business Combinations (Details Textual) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Apr. 12, 2024 USD ($) $ / shares shares
Business Combination, Acquisition-Related Cost, Expense	$ 0	$ 775
Eagle Financial Bancorp, Inc. [Member]
Business Combination, Number of Operating Branches			3
Business Acquisition, Stock To Be Received, Shares (in shares) \| shares			1.1401
Business Acquisition, Cash For Stock Options (in dollars per share) \| $ / shares			$ 19.1
Business Combination, Acquired Receivable, Fair Value			$ 101,700
Business Combination, Acquired Receivables, Gross Contractual Amount			112,500
Business Combination, Acquired Receivable, Purchased without Credit Deterioration, Contractual Cash Flow, Estimated Uncollectible			$ 763
Business Combination, Acquisition-Related Cost, Expense	$ 0	$ 298
Eagle Financial Bancorp, Inc. [Member] \| Minimum [Member]
Business Acquisition, Limitation of Stock, Percent			60.00%
Eagle Financial Bancorp, Inc. [Member] \| Maximum [Member]
Business Acquisition, Limitation of Stock, Percent			70.00%

The amount per share the company will payout for the stock options as a result of the merger.

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- Definition

The percent of the stock limitation for the merger.

+ References

No definition available.

+ Details

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- Definition

The number of shares offered by the company as a result of the merger.

+ References

No definition available.

+ Details

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- Definition

The number of operating branches owned by the company.

+ References

No definition available.

+ Details

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- Definition

Amount of estimated contractual cash flow not expected to be collected for receivable purchased without credit deterioration, acquired in business combination. Excludes purchased financial asset with credit deterioration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-1

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- Definition

Fair value of receivable purchased without credit deterioration, acquired in business combination. Excludes purchased financial asset with credit deterioration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-1

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- Definition

Amount of gross contractual receivable purchased without credit deterioration, acquired in business combination. Excludes purchased financial asset with credit deterioration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-1

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- Definition

Amount of expense for acquisition-related cost incurred to effect business combination. Includes, but is not limited to, finder's fee; advisory, legal, accounting, valuation, and other professional and consulting fees; and general administrative cost, including cost of maintaining internal acquisition department.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479328/805-10-50-7

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 25
-Paragraph 23
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479405/805-10-25-23

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- Details

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