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Note 3 - Securities - Amortized Cost and Fair Value of Securities By Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Due in one year or less, amortized cost	$ 15,271
Due in one year or less, fair value	15,278
Due after one year through five years, amortized cost	248
Due after one year through five years, fair value	248
Amortized cost, single maturity date	15,519
Fair value, single maturity date	15,526
Amortized cost	23,538	$ 59,884
Fair value	23,829	60,193
Residential Mortgage Backed Securities [Member]
Amortized cost, without single maturity date	5,826
Fair value, without single maturity date	6,108
Amortized cost	5,826	7,727
Fair value	6,108	8,037
Collateralized Mortgage Backed Securities [Member]
Amortized cost, without single maturity date	2,193
Fair value, without single maturity date	2,195
Amortized cost	2,193	2,986
Fair value	$ 2,195	$ 2,977

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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+ References

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