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Note 8 - Derivative and Hedging Activities (Details Textual) | 6 Months Ended |
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Jun. 30, 2022 USD ($) | Sep. 30, 2022 USD ($)
Pay Floating Swap Agreement [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] |  |
Derivative, Number of Instruments Held, Total | 2 |
Derivative, Notional Amount | $ 200,000,000.0 |
Derivative, Fixed Coupon Rate | 2.41% |
Derivative Instrument, Net cash settlements received |  | $ 773,000
Pay Fixed Swap Agreement [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] |  |
Derivative, Number of Instruments Held, Total | 1 |
Derivative, Notional Amount | $ 200,000,000.0 |
Derivative, Fixed Coupon Rate | 2.75% |
Derivative, Term of Contract (Year) | 8 years |
Four SOFR Cap Agreements [Member] |  |
Derivative, Number of Instruments Held, Total | 4 |
Derivative, Notional Amount | $ 200,000,000.0 |
Derivative, Term of Contract (Year) | 8 years |
Four SOFR Cap Agreements [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative, Notional Amount | $ 16,500,000 |
Three SOFR Cap Agreement [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] |  |
Derivative, Notional Amount | $ 100,000,000.0 |
Derivative, Floor Interest Rate | 2.68% |
One SOFR Cap Agreement [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] |  |
Derivative, Floor Interest Rate | 2.68% |
One SOFR Cap Agreement [Member] | Not Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] |  |
Derivative, Notional Amount | $ 100,000,000.0 |

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- Definition Fixed coupon rate related to the derivative. + References No definition available. + Details
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- Definition Represents net cash settlements received for derivative instrument. + References No definition available. + Details
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- Definition Floor rate on an interest rate derivative such as an interest rate floor or collar. If market rates falls below the floor rate, a payment or receipt is triggered on the contract. + References No definition available. + Details
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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 + Details
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- Definition The number of derivative instruments of a particular group held by the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 + Details
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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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