Note 13 - Regulatory Matters (Details) (USD $)	0 Months Ended				3 Months Ended		9 Months Ended				0 Months Ended
	Sep. 24, 2014	Jun. 25, 2014	May 29, 2014	Mar. 10, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2009	Oct. 16, 2014 Subsequent Event [Member]
Note 13 - Regulatory Matters (Details) [Line Items]
Trust Preferred Securities Included in Tier One Capital (in Dollars)					$ 52,200,000		$ 52,200,000		$ 32,000,000
Maximum Restricted Core Element Allowed in Tier One Capital, Percent							25.00%
Maximum Level of Consolidated Aggregate Assets Allowing for Inclusion of Trust Preferred Securities in Tier One Capital (in Dollars)										$ 15,000,000,000
Common Stock, Dividends, Per Share, Cash Paid	$ 0.12	$ 0.12	$ 2.00	$ 0.12	$ 0.12	$ 0.12	$ 2.36	$ 0.33
Common Stock, Dividends, Per Share, Declared											$ 0.12