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Note 19 - Fair Value Measurements - Carrying Values and Estimated Values of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020
Fair value, available for sale securities	$ 289,495	$ 289,495	$ 140,225
Securities held to maturity	33,441
Restricted securities	1,813		1,875
Bank owned life insurance	24,294		17,916
Reported Value Measurement [Member]
Cash and short-term investments	176,006		127,297
Fair value, available for sale securities	289,495		140,225
Securities held to maturity	33,441		14,234
Restricted securities	1,813		1,875
Loans held for sale	0		245
Loans, net	819,408		622,429
Bank owned life insurance	24,294		17,916
Accrued interest receivable	3,903		2,717
Derivatives - cash flow hedges	941		431
Deposits	1,248,752		842,461
Subordinated debt	9,993		9,991
Junior subordinated debt	9,279		9,279
Accrued interest payable	152		134
Estimate of Fair Value Measurement [Member]
Cash and short-term investments	176,006		127,297
Fair value, available for sale securities	289,495		140,225
Securities held to maturity	33,617		14,743
Restricted securities	1,813		1,875
Loans held for sale	0		245
Loans, net	827,248		633,638
Bank owned life insurance	24,294		17,916
Accrued interest receivable	3,903		2,717
Derivatives - cash flow hedges	941		431
Deposits	1,248,287		843,418
Subordinated debt	8,932		10,304
Junior subordinated debt	8,145		10,364
Accrued interest payable	152		134
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and short-term investments	176,006		127,297
Fair value, available for sale securities	0		0
Securities held to maturity	0		0
Restricted securities	0		0
Loans held for sale	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	289,495		140,225
Securities held to maturity	33,617		13,138
Restricted securities	1,813		1,875
Loans held for sale	0		245
Loans, net	0		0
Bank owned life insurance	24,294		17,916
Accrued interest receivable	3,903		2,717
Derivatives - cash flow hedges	941		431
Deposits	1,103,186		742,264
Subordinated debt	0		0
Junior subordinated debt	0		0
Accrued interest payable	152		134
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		1,605
Restricted securities	0		0
Loans held for sale	0		0
Loans, net	827,248		633,638
Bank owned life insurance	0		0
Accrued interest receivable	0		0
Derivatives - cash flow hedges	0		0
Deposits	145,101		101,154
Subordinated debt	8,932		10,304
Junior subordinated debt	8,145		10,364
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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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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

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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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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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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.

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

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

+ References

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- Definition

Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

+ References

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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.

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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.

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