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Note 8 - Derivative and Hedging Activities (Details Textual)	6 Months Ended
	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

X

- Definition

Fixed coupon rate related to the derivative.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

X

- Definition

Represents net cash settlements received for derivative instrument.

+ References

No definition available.

+ Details

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Period Type:	instant

X

- 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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X

- 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

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X

- 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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X

- 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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- Details

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