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	Jun. 30, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	$ 571,569	$ 574,659
Real Estate Construction [Member] | Construction, 1-4 Family Residential [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	18,575	14,344
Real Estate Construction [Member] | Construction, 1-4 Family Residential [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	157	158
Real Estate Construction [Member] | Construction, 1-4 Family Residential [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	0	0
Real Estate Construction [Member] | Construction other [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	34,528	29,011
Real Estate Construction [Member] | Construction other [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	0	0
Real Estate Construction [Member] | Construction other [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	30	120
Consumer Real Estate [Member] | Equity Lines [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	16,886	17,742
Consumer Real Estate [Member] | Equity Lines [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	0	100
Consumer Real Estate [Member] | Equity Lines [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	64	182
Consumer Real Estate [Member] | Residential closed end first liens [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	76,218	113,893
Consumer Real Estate [Member] | Residential closed end first liens [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	1,300	652
Consumer Real Estate [Member] | Residential closed end first liens [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	2,229	2,413
Consumer Real Estate [Member] | Residential closed end junior liens [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	4,690	6,713
Consumer Real Estate [Member] | Residential closed end junior liens [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	119	119
Consumer Real Estate [Member] | Residential closed end junior liens [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	129	138
Consumer Real Estate [Member] | Investor-owned residential real estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	38,543
Consumer Real Estate [Member] | Investor-owned residential real estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	321
Consumer Real Estate [Member] | Investor-owned residential real estate [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	50
Commercial Real Estate Loans [Member] | Multifamily Residential Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	50,590	36,421
Commercial Real Estate Loans [Member] | Multifamily Residential Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	0	0
Commercial Real Estate Loans [Member] | Multifamily Residential Real Estate [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	1,065	324
Commercial Real Estate Loans [Member] | Commercial real estate, owner occupied [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	136,791	160,188
Commercial Real Estate Loans [Member] | Commercial real estate, owner occupied [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	2,208	253
Commercial Real Estate Loans [Member] | Commercial real estate, owner occupied [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	1,014	1,079
Commercial Real Estate Loans [Member] | Commercial real estate, other [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	92,055	92,628
Commercial Real Estate Loans [Member] | Commercial real estate, other [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	3,112	3,112
Commercial Real Estate Loans [Member] | Commercial real estate, other [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	0	0
Commercial Non Real Estate [Member] | Commercial and Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	33,740	36,372
Commercial Non Real Estate [Member] | Commercial and Industrial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	848	99
Commercial Non Real Estate [Member] | Commercial and Industrial [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	249	318
Public Sector and IDA [Member] | States & Political Subdivisions [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	26,308	26,170
Public Sector and IDA [Member] | States & Political Subdivisions [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	0	0
Public Sector and IDA [Member] | States & Political Subdivisions [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	0	0
Consumer Non Real Estate [Member] | Credit Card Receivable [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	6,575	6,690
Consumer Non Real Estate [Member] | Credit Card Receivable [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	0	0
Consumer Non Real Estate [Member] | Credit Card Receivable [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	0	0
Consumer Non Real Estate [Member] | Automobile [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	11,858	12,344
Consumer Non Real Estate [Member] | Automobile [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	139	101
Consumer Non Real Estate [Member] | Automobile [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	64	56
Consumer Non Real Estate [Member] | Other Consumer Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	10,140	11,815
Consumer Non Real Estate [Member] | Other Consumer Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	42	45
Consumer Non Real Estate [Member] | Other Consumer Loans [Member] | Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	29	105
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	557,497	564,331
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	8,246	4,639
Classified Excluding Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Collectively Evaluated Loans	$ 4,923	$ 4,735