Note 5 - Loans Receivable and the Allowance for Loan Losses (Details) - Loans by Loan Class Modified as TDRs (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Modifications [Line Items]
Number of Contracts	16	15
Pre-Modification Outstanding Recorded Investment	$ 4,588	$ 3,618
Post-Modification Outstanding Recorded Investment	4,557	3,465
Commercial:Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	2
Pre-Modification Outstanding Recorded Investment	757	491
Post-Modification Outstanding Recorded Investment	757	426
Commercial:Construction [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	2
Pre-Modification Outstanding Recorded Investment	1,319
Post-Modification Outstanding Recorded Investment	1,319
Commercial:Secured by Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	1
Pre-Modification Outstanding Recorded Investment	1,822	2,380
Post-Modification Outstanding Recorded Investment	1,805	2,311
Commercial Secured By Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	12	10
Pre-Modification Outstanding Recorded Investment	690	564
Post-Modification Outstanding Recorded Investment	676	554
Retail:1-4 Family Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts		1
Pre-Modification Outstanding Recorded Investment		145
Post-Modification Outstanding Recorded Investment		137
Retail Home Equity Loans And Lines [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts		1
Pre-Modification Outstanding Recorded Investment		38
Post-Modification Outstanding Recorded Investment		$ 37