Other Real Estate Owned - (Narrative) (Details) - USD ($)	3 Months Ended	15 Months Ended
Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018
FDIC Loss-Sharing Related
Minority interests in OREO which are held by outside banks			$ 700,000
Loss (gain) on OREO sales, net	$ (78,000)	$ 112,000

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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.14(d))
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

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