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Note 8 - Loans Receivable and Credit Disclosures - Allowance for Loan Losses Impairment Analysis (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Individually evaluated for impairment	$ 754	$ 209
Collectively evaluated for impairment	15,251	12,410
Balance	16,005	12,619
Construction Real Estate [Member]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	849	672
Balance	849	672
Family Residential Real Estate 1-4 [Member]
Individually evaluated for impairment	150	209
Collectively evaluated for impairment	2,355	1,913
Balance	2,505	2,122
Commercial Real Estate Portfolio Segment [Member]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	6,864	5,362
Balance	6,864	5,362
Agriculture Real Estate [Member]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,713	1,326
Balance	1,713	1,326
Commercial Portfolio Segment [Member]
Individually evaluated for impairment	558	0
Collectively evaluated for impairment	1,436	1,458
Balance	1,994	1,458
Agriculture [Member]
Individually evaluated for impairment	40	0
Collectively evaluated for impairment	1,790	1,478
Balance	1,830	1,478
Consumer and Other [Member]
Individually evaluated for impairment	6	0
Collectively evaluated for impairment	244	201
Balance	$ 250	$ 201

X

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

+ References

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-Topic 310
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