Note 12 - Deferred Tax Assets and Liabilities (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets
Allowance for credit losses on loans	$ 1,882,000	$ 1,859,000
Net unrealized holding losses on investment securities available-for-sale	18,226,000	17,692,000
Net unrealized holding losses on investment rate swaps	0	367,000
Non-accrual interest income	200,000	170,000
Leasing liability	630,000	637,000
Deferred revenue	113,000	0
Incurred but not reported medical expense	34,000	27,000
Bonus	192,000	88,000
State net operating loss carryforward	171,000	30,000
Other	106,000	61,000
Total deferred tax assets	21,554,000	20,931,000
Deferred tax liabilities
Deferred loan income	531,000	487,000
Depreciation	286,000	215,000
Mortgage servicing rights	81,000	87,000
Net unrealized holding losses on investment rate swaps	1,040,000	0
Fair value adjustment on equity securities	0	61,000
Fair value remeasurements on interest rate swap	22,000	12,000
Prepaid expenses	262,000	203,000
Right of use asset	564,000	572,000
Subordinated debt costs	263,000	0
Other	8,000	0
Total deferred tax liabilities	3,057,000	1,637,000
Valuation allowance	172,000	4,000
Net deferred tax asset	$ 18,325,000	$ 19,290,000