Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Collectively-Evaluated Loans by Credit Quality Indicator (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	$ 581,486	$ 583,610
Construction, 1-4 Family Residential [Member] | Real Estate Construction [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	18,253	17,702
Construction, 1-4 Family Residential [Member] | Real Estate Construction [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans		163
Construction, 1-4 Family Residential [Member] | Real Estate Construction [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans		45
Construction Other [Member] | Real Estate Construction [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	23,786	27,971
Construction Other [Member] | Real Estate Construction [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	28	29
Construction Other [Member] | Real Estate Construction [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans		15
Equity Lines [Member] | Consumer Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	16,432	16,146
Equity Lines [Member] | Consumer Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	15	16
Equity Lines [Member] | Consumer Real Estate [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	46
Residential Closed End First Liens [Member] | Consumer Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	75,550	82,767
Residential Closed End First Liens [Member] | Consumer Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	926	1,007
Residential Closed End First Liens [Member] | Consumer Real Estate [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	1,946	1,275
Residential Closed End Junior Liens [Member] | Consumer Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	4,558	4,813
Residential Closed End Junior Liens [Member] | Consumer Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	25	109
Residential Closed End Junior Liens [Member] | Consumer Real Estate [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	97	3
Investor-Owned Residential Real Estate [Member] | Consumer Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	43,604	38,071
Investor-Owned Residential Real Estate [Member] | Consumer Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	99	105
Investor-Owned Residential Real Estate [Member] | Consumer Real Estate [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	328	407
Multifamily Residential Real Estate [Member] | Commercial Real Estate Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	66,451	67,573
Multifamily Residential Real Estate [Member] | Commercial Real Estate Loans [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	715	958
Commercial Real Estate, Owner Occupied [Member] | Commercial Real Estate Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	138,110	134,137
Commercial Real Estate, Owner Occupied [Member] | Commercial Real Estate Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	230	2,206
Commercial Real Estate, Owner Occupied [Member] | Commercial Real Estate Loans [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	936	701
Commercial Real Estate, Other [Member] | Commercial Real Estate Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	91,484	89,340
Commercial Real Estate, Other [Member] | Commercial Real Estate Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	1,186	1,209
Commercial Real Estate, Other [Member] | Commercial Real Estate Loans [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	21	3,063
Commercial and Industrial [Member] | Commercial Non Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	30,994	29,987
Commercial and Industrial [Member] | Commercial Non Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	121	878
Commercial and Industrial [Member] | Commercial Non Real Estate [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	412	295
States & Political Subdivisions [Member] | Public Sector And IDA [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	36,398	34,220
Credit Card Receivable [Member] | Consumer Non Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	5,903	6,354
Automobile [Member] | Consumer Non Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	11,677	11,428
Automobile [Member] | Consumer Non Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	128	253
Automobile [Member] | Consumer Non Real Estate [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	114	34
Other Consumer Loans [Member] | Consumer Non Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	10,904	10,253
Other Consumer Loans [Member] | Consumer Non Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	2	17
Other Consumer Loans [Member] | Consumer Non Real Estate [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	7	60
Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	42,067	45,925
Consumer Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	143,626	144,719
Commercial Real Estate Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	299,133	299,187
Commercial Non Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	31,527	31,160
Public Sector And IDA [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	36,398	34,220
Consumer Non Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	28,735	28,399
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	574,104	570,762
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	2,760	5,992
Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	$ 4,622	$ 6,856