Note 5 - Investment Securities Available for Sale - Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Due after five years through ten years, amortized cost	$ 0
Due after five years through ten years, fair value	0
Due after ten years, amortized cost	3,771
Due after ten years, fair value	3,774
Total, amortized cost	3,771	$ 4,004
Total, fair value	$ 3,774	$ 4,033

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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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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