Note 7 - Other Assets - Schedule of Available-for-Sale Debt Securities (Details) - Interchange IC [Member] - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Debt securities, available-for-sale, amortized cost	$ 14,492	$ 14,479
Debt securities, available-for-sale, unrealized gains (losses)	658	459
Debt Securities, available-for-sale, fair value	15,150	14,938
Stocks [Member]
Debt securities, available-for-sale, amortized cost	3,278	1,118
Debt securities, available-for-sale, unrealized gains (losses)	553	447
Debt Securities, available-for-sale, fair value	3,831	1,565
Exchange Traded Funds [Member]
Debt securities, available-for-sale, amortized cost	5,465	5,338
Debt securities, available-for-sale, unrealized gains (losses)	127	(16)
Debt Securities, available-for-sale, fair value	5,592	5,322
Corporate Bond Securities [Member]
Debt securities, available-for-sale, amortized cost	446	2,837
Debt securities, available-for-sale, unrealized gains (losses)	(3)	33
Debt Securities, available-for-sale, fair value	443	2,870
Real Estate Investment [Member]
Debt securities, available-for-sale, amortized cost	394	377
Debt securities, available-for-sale, unrealized gains (losses)	0	(5)
Debt Securities, available-for-sale, fair value	394	372
Mutual Funds [Member]
Debt securities, available-for-sale, amortized cost	4,909	4,809
Debt securities, available-for-sale, unrealized gains (losses)	(19)	0
Debt Securities, available-for-sale, fair value	$ 4,890	$ 4,809

Amortized cost 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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+ Details

- Definition

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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