Note 8 - Loans and Allowance for Loan Losses (Details) - Past Due Loans (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	$ 1,589	$ 3,928
60 - 89 Days Past Due	2,126	688
90 Days or More Past Due	2,032	770
Total Past Due Loans	5,747	5,386
Current	516,226	496,366
Total Loans Receivable	521,973	501,752
Commercial:Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	327	112
60 - 89 Days Past Due	227
90 Days or More Past Due		17
Total Past Due Loans	554	129
Current	114,852	111,210
Total Loans Receivable	115,406	111,339
Commercial:Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	18,908	15,929
Total Loans Receivable	18,908	15,929
Commercial:Secured by Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	470	1,126
60 - 89 Days Past Due	927	361
90 Days or More Past Due	924	255
Total Past Due Loans	2,321	1,742
Current	184,456	188,860
Total Loans Receivable	186,777	190,602
Commercial Secured By Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	527	1,242
60 - 89 Days Past Due	658	98
90 Days or More Past Due	602	105
Total Past Due Loans	1,787	1,445
Current	47,356	46,227
Total Loans Receivable	49,143	47,672
State And Political Subdivisions [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due		65
60 - 89 Days Past Due		65
Total Past Due Loans		130
Current	42,892	33,643
Total Loans Receivable	42,892	33,773
Loans To Depository Institutions [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	375	1,250
Total Loans Receivable	375	1,250
Indirect Lease Financing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	48	311
60 - 89 Days Past Due	115	152
90 Days or More Past Due	84
Total Past Due Loans	247	463
Current	7,438	7,901
Total Loans Receivable	7,685	8,364
Retail:1-4 Family Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due		752
60 - 89 Days Past Due	111	5
90 Days or More Past Due	278	270
Total Past Due Loans	389	1,027
Current	34,682	28,703
Total Loans Receivable	35,071	29,730
Retail Home Equity Loans And Lines [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	209	295
60 - 89 Days Past Due	88	2
90 Days or More Past Due	144	106
Total Past Due Loans	441	403
Current	61,361	59,574
Total Loans Receivable	61,802	59,977
Retail:Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	8	25
60 - 89 Days Past Due		5
90 Days or More Past Due		17
Total Past Due Loans	8	47
Current	3,906	3,069
Total Loans Receivable	$ 3,914	$ 3,116