Note 5 - Loans and Allowance for Loan Losses (Details) - Troubled Debt Restructurings During the Period - Troubled Debt Restructuring [Member] - Commercial Real Estate Portfolio Segment [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2014 USD ($)
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Number of Contracts	5
Pre-Modification Outstanding Balance	$ 641
Post-Modification Outstanding Balance	$ 641