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Note 2 - Revenue Recognition - Disaggregation of Revenue (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Loss on equity securities	[1]	$ (7,000)	$ (27,000)	$ (41,000)	$ (79,000)
Earnings on bank-owned life insurance	[1]	230,000	227,000	723,000	454,000
Gain on sale of loans	[1]	39,000	69,000	63,000	79,000
Revenue from investment services		310,000	269,000	578,000	473,000
Gain on exchange of real estate ?ª?		1,229,000	0	1,229,000	0
Miscellaneous fee income		96,000	101,000	192,000	195,000
Gross rental income	[1]	0	0	0	67,000
Other income		120,000	150,000	228,000	487,000
Total noninterest income		3,078,000	1,760,000	5,022,000	3,556,000
Overdraft Fees [Member]
Noninterest income revenue		258,000	248,000	520,000	497,000
ATM Banking Fees [Member]
Noninterest income revenue		483,000	491,000	915,000	932,000
Service Charge and Other Fees [Member]
Noninterest income revenue		$ 320,000	$ 232,000	$ 615,000	$ 451,000
[1] Not within scope of ASC 606

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The gain (loss) on the exchange of real estate.

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Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies.

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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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The net gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes.

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Amount of fees and commissions from banking, advisory, brokerage, and securities underwriting activities. Activities include, but are not limited to, underwriting securities, private placements of securities, investment advisory and management services, merger and acquisition services, sale and servicing of mutual funds, and other related consulting fees.

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The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

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