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Note 19 - Fair Value Measurements - Carrying Values and Estimated Values of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Fair value, available for sale securities	$ 162,907	$ 74,400	$ 289,495
Securities held to maturity	153,158
Restricted securities	1,908		1,813
Bank owned life insurance	24,531		24,294
Fair Value, Inputs, Level 1 [Member]
Fair value, available for sale securities	0
Fair Value, Inputs, Level 2 [Member]
Fair value, available for sale securities	0
Fair Value, Inputs, Level 3 [Member]
Fair value, available for sale securities	0
Reported Value Measurement [Member]
Cash and short-term investments	66,914		176,006
Fair value, available for sale securities	162,907		289,495
Securities held to maturity	153,158		33,441
Restricted securities	1,908		1,813
Loans, net	913,077		819,408
Bank owned life insurance	24,531		24,294
Accrued interest receivable	4,543		3,903
Derivatives - cash flow hedges	2,679		941
Deposits	1,241,332		1,248,752
Subordinated debt	4,995		9,993
Junior subordinated debt	9,279		9,279
Accrued interest payable	163		152
Estimate of Fair Value Measurement [Member]
Cash and short-term investments	66,914		176,006
Fair value, available for sale securities	162,907		289,495
Securities held to maturity	141,797		33,617
Restricted securities	1,908		1,813
Loans, net	880,473		827,248
Bank owned life insurance	24,531		24,294
Accrued interest receivable	4,543		3,903
Derivatives - cash flow hedges	2,679		941
Deposits	1,235,787		1,248,287
Subordinated debt	5,267		8,932
Junior subordinated debt	6,067		8,145
Accrued interest payable	163		152
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and short-term investments	66,914		176,006
Fair value, available for sale securities	0		0
Securities held to maturity	0		0
Restricted securities	0		0
Loans, net	0		0
Bank owned life insurance	0		0
Accrued interest receivable	0		0
Derivatives - cash flow hedges	0		0
Deposits	0		0
Subordinated debt	0		0
Junior subordinated debt	0		0
Accrued interest payable	0		0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and short-term investments	0		0
Fair value, available for sale securities	162,907		289,495
Securities held to maturity	141,797		33,617
Restricted securities	1,908		1,813
Loans, net	0		0
Bank owned life insurance	24,531		24,294
Accrued interest receivable	4,543		3,903
Derivatives - cash flow hedges	2,679		941
Deposits	1,104,483		1,103,186
Subordinated debt	0		0
Junior subordinated debt	0		0
Accrued interest payable	163		152
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and short-term investments	0		0
Fair value, available for sale securities	0		0
Securities held to maturity	0		0
Restricted securities	0		0
Loans, net	880,473		827,248
Bank owned life insurance	0		0
Accrued interest receivable	0		0
Derivatives - cash flow hedges	0		0
Deposits	131,304		145,101
Subordinated debt	5,267		8,932
Junior subordinated debt	6,067		8,145
Accrued interest payable	$ 0		$ 0

X

- Definition

The fair value portion of accrued interest payable.

+ References

No definition available.

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- Definition

Fair value of junior subordinated debt which has a lower priority of repayment than subordinated debt in the event the company falls into liquidation or bankruptcy.

+ References

No definition available.

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Fair value of subordinated debt obligations.

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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- Definition

The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10))
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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- Definition

Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

+ References

No definition available.

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 3
-Subparagraph (c)
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- Definition

Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

+ References

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- Definition

Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(4))
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- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Investments which are not defined as or included in marketable (debt, equity, or other) securities whose use is restricted in whole or in part, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 954
-SubTopic 210
-Section 45
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=120413173&loc=SL6242262-115580

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-SubTopic 210
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-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=127002003&loc=SL6242269-115581

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