Note 8 - Loans & Allowance for Loan Losses (Details) - Past Due Loans (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Commercial:
30-59 days past due	$ 2,339	$ 1,127
60-89 days past due	1,865	2,425
90 days or more past due	2,815	3,622
Total past due loans	7,019	7,174
Current	480,459	470,616
Loans	487,478	477,790
Commercial:Commercial and Industrial [Member]
Commercial:
30-59 days past due	544	76
Total past due loans	544	76
Current	102,018	99,987
Loans	102,562	100,063
Commercial:Construction [Member]
Commercial:
Current	13,285	11,061
Loans	13,285	11,061
Commercial:Secured by Commercial Real Estate [Member]
Commercial:
30-59 days past due	588	407
60-89 days past due	451	1,460
90 days or more past due	2,548	3,097
Total past due loans	3,587	4,964
Current	188,404	187,903
Loans	191,992	192,867
Commercial Secured By Residential Real Estate [Member]
Commercial:
30-59 days past due	1,043	44
60-89 days past due	1,111	523
90 days or more past due		293
Total past due loans	2,154	860
Current	43,294	40,143
Loans	45,448	41,003
State And Political Subdivisions [Member]
Commercial:
30-59 days past due	23	71
60-89 days past due		1
Total past due loans	23	72
Current	35,444	34,184
Loans	35,467	34,256
Loans To Depository Institutions [Member]
Commercial:
Current	1,250	3,250
Loans	1,250	3,250
Indirect Lease Financing [Member]
Commercial:
30-59 days past due	100	344
60-89 days past due	138	80
90 days or more past due	13	35
Total past due loans	251	459
Current	8,435	9,226
Loans	8,685	9,685
Retail:1-4 Family Residential Mortgages [Member]
Commercial:
60-89 days past due	118	197
90 days or more past due	153
Total past due loans	271	197
Current	27,841	28,536
Loans	28,112	28,733
Retail Home Equity Loans And Lines [Member]
Commercial:
30-59 days past due	2	152
60-89 days past due	45	153
90 days or more past due	101	197
Total past due loans	148	502
Current	57,992	54,358
Loans	58,140	54,860
Retail:Consumer [Member]
Commercial:
30-59 days past due	39	33
60-89 days past due	2	11
Total past due loans	41	44
Current	2,496	1,968
Loans	$ 2,537	$ 2,012