Other Real Estate Owned - Gross Gains, Gross Losses and Write-downs of OREO (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Note 5 - Other Real Estate Owned - Gross Gains, Gross Losses and Write-downs of OREO (Details)
Gross gains	$ 0	$ 27	$ 50
Gross losses	0	0	0
Write-down of carrying value	0	0	0
Total income	$ 0	$ 27	$ 50

The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.14(d))
-URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration