Note 14 - Derivative Financial Instruments (Details Textual) $ in Millions	Sep. 30, 2022 USD ($)
Cash Flow Hedging [Member]
Derivative, Number of Instruments Held, Total	2
Interest Rate Swap Maturing October 18 2023 [Member]
Derivative Liability, Notional Amount	$ 20.0
Cash Flow Hedge Derivative Liability Notional Amount	$ 20.0
Derivative, Swaption Interest Rate	1.07%
Interest Rate Swap Maturing October18 2024 [Member]
Derivative Liability, Notional Amount	$ 20.0
Cash Flow Hedge Derivative Liability Notional Amount	$ 20.0
Derivative, Swaption Interest Rate	1.1055%
Interest Rate Cap [Member]
Derivative, Number of Instruments Held, Total	2
Interest Rate Cap Maturing April 18 2030 [Member]
Derivative Liability, Notional Amount	$ 100.0
Cash Flow Hedge Derivative Liability Notional Amount	$ 100.0
Derivative, Cap Interest Rate	0.75%
Interest Rate Cap Maturing December 18 2025 [Member]
Derivative Liability, Notional Amount	$ 100.0
Cash Flow Hedge Derivative Liability Notional Amount	$ 100.0
Derivative, Cap Interest Rate	0.50%
Fair Value Hedging [Member]
Derivative, Number of Instruments Held, Total	2
Interest Rate Swap Commercial Real Estate [Member]
Derivative Asset, Notional Amount	$ 21.3
Interest Rate Swap Available for Sale Taxable Municipal Securities [Member]
Derivative Asset, Notional Amount	$ 71.2

Represents cash flow hedge derivative liability notional amount.

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- Definition

Nominal or face amount used to calculate payments on the derivative asset.

+ References

Reference 1: 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

Reference 2: 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 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

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- Definition

Cap rate on an interest rate derivative such as an interest rate cap or collar. If market rates exceed the cap rate, a payment or receipt is triggered on the contract.

+ References

No definition available.

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- Definition

Nominal or face amount used to calculate payments on the derivative liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

Reference 2: 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 3: 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

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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

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- Definition

Fixed interest rate that will be received or paid upon exercise of the interest rate swaption contract.

+ References

No definition available.

+ Details

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- Details

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