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Note 1 - Nature of Banking Activities and Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2023	Jan. 01, 2023	Dec. 31, 2021
Advertising Expense	$ 573	$ 455
Financing Receivable, Allowance for Credit Loss	11,974	7,446		$ 7,446	$ 5,710
Off-Balance-Sheet, Credit Loss, Liability				0
Debt Securities, Held-to-Maturity, Allowance for Credit Loss	107	0
Retained Earnings (Accumulated Deficit)	94,198	90,284
Financing Receivable, Credit Loss, Expense (Reversal)	5,917	1,850
Accrued Interest Receivable [Member]
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss			$ 3,100
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss			$ 593
Accounting Standards Update 2016-13 [Member]
Debt Securities, Held-to-Maturity, Allowance for Credit Loss		0		134
Financing Receivable, Credit Loss, Expense (Reversal)	107
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss	$ 769
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Financing Receivable, Allowance for Credit Loss		2,186		2,186
Off-Balance-Sheet, Credit Loss, Liability				153
Debt Securities, Held-to-Maturity, Allowance for Credit Loss		$ 134		134
Retained Earnings (Accumulated Deficit)				$ (2,000)
Minimum [Member] | Core Deposits [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	6 years
Maximum [Member] | Core Deposits [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	10 years
Premises and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Premises and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	40 years
Software and Software Development Costs [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Software and Software Development Costs [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	7 years

X

- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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