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Note 3 - Securities - Amortized Cost and Fair Value of Securities By Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Due in one year or less, amortized cost	$ 49,388
Due in one year or less, fair value	49,389
Due after one year through five years, amortized cost	404
Due after one year through five years, fair value	413
Amortized cost, single maturity date	49,792
Fair value, single maturity date	49,802
Amortized cost	59,117	$ 59,884
Fair value	59,437	60,193
Residential Mortgage Backed Securities [Member]
Amortized cost, without single maturity date	6,668
Fair value, without single maturity date	6,983
Amortized cost	6,668	7,727
Fair value	6,983	8,037
Collateralized Mortgage Backed Securities [Member]
Amortized cost, without single maturity date	2,657
Fair value, without single maturity date	2,652
Amortized cost	2,657	2,986
Fair value	$ 2,652	$ 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
-Name Accounting Standards Codification
-Topic 320
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-Section 50
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
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+ References

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