Note 6 - Loans (Details) - Information Regarding Number of Loans Where Contractual Terms have been Restructured (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	7
Pre-Modification Outstanding Recorded Investment	$ 700	$ 525
Post-Modification Outstanding Recorded Investment	700	592
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1
Pre-Modification Outstanding Recorded Investment	700
Post-Modification Outstanding Recorded Investment	700
Residential One To Four Family [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts		6
Pre-Modification Outstanding Recorded Investment		451
Post-Modification Outstanding Recorded Investment		517
Residential Real Estate and Home Equities [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts		1
Pre-Modification Outstanding Recorded Investment		74
Post-Modification Outstanding Recorded Investment		$ 75