Note 5 - Loans Receivable and the Allowance for Loan Losses (Details) - Loan Portfolio Summarized by the Aggregate Pass Ratings (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	$ 501,752	$ 477,790
Commercial:Commercial and Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	100,943	88,427
Commercial:Commercial and Industrial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	59	3,843
Commercial:Commercial and Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	10,337	7,763
Commercial:Commercial and Industrial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans		30
Commercial:Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	111,339	100,063
Commercial:Construction [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	13,751	5,558
Commercial:Construction [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	827	1,513
Commercial:Construction [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	1,351	3,990
Commercial:Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	15,929	11,061
Commercial:Secured by Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	163,349	157,678
Commercial:Secured by Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	4,199	7,493
Commercial:Secured by Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	23,054	27,696
Commercial:Secured by Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	190,602	192,867
Commercial Secured By Residential Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	43,854	36,078
Commercial Secured By Residential Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	187	1,199
Commercial Secured By Residential Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	3,631	3,726
Commercial Secured By Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	47,672	41,003
State And Political Subdivisions [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	33,488	32,303
State And Political Subdivisions [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	285	1,953
State And Political Subdivisions [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	33,773	34,256
Loans To Depository Institutions [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	1,250	3,250
Loans To Depository Institutions [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	1,250	3,250
Indirect Lease Financing [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	8,199	9,329
Indirect Lease Financing [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	165	356
Indirect Lease Financing [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	8,364	9,685
Excluding Retail Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	364,834	332,623
Excluding Retail Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	5,272	14,048
Excluding Retail Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	38,823	45,484
Excluding Retail Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans		30
Excluding Retail Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Class of Loans	$ 408,929	$ 392,185