Note 20 - Fair Value Measurements and Fair Values of Financial Instruments - Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Reported Value Measurement [Member]
Investment in interest-earning time deposits	$ 912	$ 912
Loans held for sale	60,956	64,281
Loans receivable, net	535,641	531,471
Individually evaluated loans	5,057	3,222
Deposits	597,278	553,252
Senior debt	9,619
Subordinated debt	8,000	22,000
FHLB long-term borrowings		2,855
Estimate of Fair Value Measurement [Member]
Investment in interest-earning time deposits	936	964
Loans held for sale	63,308	65,624
Loans receivable, net	533,964	515,073
Individually evaluated loans	5,057	3,222
Deposits	604,465	560,701
Senior debt	9,763
Subordinated debt	7,760	21,733
FHLB long-term borrowings		2,848
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member]
Investment in interest-earning time deposits	0	0
Loans held for sale	0	0
Loans receivable, net	0	0
Individually evaluated loans	0
Deposits	242,561	270,361
Senior debt	0
Subordinated debt	0	0
FHLB long-term borrowings		0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member]
Investment in interest-earning time deposits	0	0
Loans held for sale	63,308	65,624
Loans receivable, net	0	0
Individually evaluated loans	0
Deposits	0	0
Senior debt	0
Subordinated debt	0	0
FHLB long-term borrowings		0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member]
Investment in interest-earning time deposits	936	964
Loans held for sale	0	0
Loans receivable, net	533,964	515,073
Individually evaluated loans	5,057	3,222
Deposits	361,904	290,340
Senior debt	9,763
Subordinated debt	$ 7,760	21,733
FHLB long-term borrowings		$ 2,848

The fair value disclosure for individually evaluated loans receivable.

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The fair value of interest-bearing time deposits.

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The entire fair value disclosure for senior debt obligations.

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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.

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Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt.

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- Definition

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

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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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The noncurrent portion of Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

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