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Note 3 - Securities - Amortized Cost and Fair Value of Securities By Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Due in one year or less, amortized cost	$ 87,637
Due in one year or less, fair value	86,118
Due after one year through five years, amortized cost	71,654
Due after one year through five years	67,794
Amortized cost, single maturity date, amortized cost	159,291
Fair value, single maturity date	153,912
Amortized cost	163,972	$ 218,599
Fair value	158,425	210,338
Residential Mortgage-Backed Securities [Member]
Amortized cost, without single maturity date, amortized cost	3,622
Fair value, without single maturity date	3,480
Amortized cost	3,622	3,997
Fair value	3,480	3,881
Collateralized Mortgage-Backed Securities [Member]
Amortized cost, without single maturity date, amortized cost	1,059
Fair value, without single maturity date	1,033
Amortized cost	1,059	1,223
Fair value	$ 1,033	$ 1,197

X

- Definition

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

+ References

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-Topic 944
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