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Note 2 - Business Combinations (Details Textual) |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Apr. 12, 2024 USD ($) $ / shares shares | Nov. 01, 2023 USD ($) $ / shares shares | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($)
Business Combination, Acquisition Related Costs |  |  | $ 281,000 | $ 302,000 | $ 3,376,000 | $ 742,000
Cincinnati Bancorp, Inc. [Member] |  |  |  |  |  |
Business Acquisition, Stock To Be Received, Shares (in shares) | shares |  | 0.9274 |  |  |  |
Business Acquisition, Cash For Stock Options (in dollars per share) | $ / shares |  | $ 17.21 |  |  |  |
Business Acquisition, Limitation of Stock, Percent |  | 80.00% |  |  |  |
Business Acquisition, Limitation of Cash, Percent |  | 20.00% |  |  |  |
Business Combination, Acquired Receivable, Fair Value |  | $ 231,900,000 |  |  |  |
Business Combination, Acquired Receivables, Gross Contractual Amount |  | 258,600,000 |  |  |  |
Business Combination, Acquired Receivables, Estimated Uncollectible |  | $ 1,722,000,000 |  |  |  |
Business Combination, Acquisition Related Costs |  |  | 10,000 | 290,000 | 332,000 | 705,000
Cincinnati Bancorp, Inc. [Member] | Core Deposits [Member] |  |  |  |  |  |
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year) |  | 10 years |  |  |  |
Cincinnati Bancorp, Inc. [Member] | Cincinnati, Ohio [Member] |  |  |  |  |  |
Business Combination, Number of Operating Branches |  | 4 |  |  |  |
Cincinnati Bancorp, Inc. [Member] | Florence, Kentucky [Member] |  |  |  |  |  |
Business Combination, Number of Operating Branches |  | 1 |  |  |  |
Eagle Financial Bancorp, Inc. [Member] |  |  |  |  |  |
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 | $ 101,700,000 |  |  |  |  |
Business Combination, Acquired Receivables, Gross Contractual Amount | $ 112,500,000 |  |  |  |  |
Business Combination, Acquired Receivables, Estimated Uncollectible |  |  | 763,000 |  | 763,000 |
Business Combination, Acquisition Related Costs |  |  | $ 271,000 | $ 12,000 | $ 3,044,000 | $ 37,000
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% |  |  |  |  |
Eagle Financial Bancorp, Inc. [Member] | Core Deposits [Member] |  |  |  |  |  |
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year) | 9 years |  |  |  |  |
Eagle Financial Bancorp, Inc. [Member] | Cincinnati, Ohio [Member] |  |  |  |  |  |
Business Combination, Number of Operating Branches | 3 |  |  |  |  |

X
- Definition The amount per share the company will payout for the stock options as a result of the merger. + References No definition available. + Details
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X
- Definition The limitation percent related to the cash payout for employee shares. + References No definition available. + Details
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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 Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 985 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481283/985-20-50-2 + Details
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- Definition For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the best estimate at the acquisition date of the contractual cash flows not expected to be collected, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479907/805-20-50-1 + Details
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- Definition Fair value of acquired receivable from business combination, excluding certain loans and debt securities acquired in transfer. + References Reference 1: 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 + Details
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- Definition For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the gross contractual amounts receivable, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479907/805-20-50-1 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479405/805-10-25-23 + Details
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