Note 7 - Investment and Equity Securities - Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Due in one year or less, amortized costs	$ 556
Due in one year or less, fair value	562
Due after one year through five years, amortized costs	2,606
Due after one year through five years, fair value	2,606
Due after five years through ten years, amortized costs	44,620
Due after five years through ten years, fair value	43,316
Due after ten years, amortized costs	146,444
Due after ten years, fair value	125,474
Amortized costs	194,226	$ 194,226	$ 165,817
Fair Value	$ 171,958	$ 171,958	$ 170,199

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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