Note 7 - Other Real Estate Owned (Details Textual) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Foreclosed Real Estate Owned, Fair Value Less Disposal Costs	$ 1.1		$ 1.5
Mortgage Loans in Process of Foreclosure, Amount	$ 0.1	$ 0.2

Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL49126937-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant