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Note 5 - Fair Value Measurements - Assets Measured at Fair Value on a Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Loans receivable	$ 8,989	$ 10,306
Other real estate owned	768	218
Total	9,757	10,524
Fair Value, Inputs, Level 1 [Member]
Loans receivable	0	0
Other real estate owned	0	0
Total	0	0
Fair Value, Inputs, Level 2 [Member]
Loans receivable	0	0
Other real estate owned	0	0
Total	0	0
Fair Value, Inputs, Level 3 [Member]
Loans receivable	8,989	10,306
Other real estate owned	768	218
Total	$ 9,757	$ 10,524

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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X

- Definition

Fair value portion of assets classified as held for sale.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
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- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2196772

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