Note 20 - Preferred Stock (Details Textual) - Series A Preferred Stock [Member] - shares			14 Months Ended
Feb. 19, 2016	Feb. 27, 2015	Feb. 18, 2016
Preferred Stock, Dividend Rate, Percentage	9.00%		1.00%
Community First Bancshares Inc [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		30,852

Number of shares of equity interests issued or issuable to acquire entity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration