Note 8 - Loans & Allowance for Loan Losses (Details) - Past Due Loans (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Commercial:
30-59 days past due	$ 2,173	$ 1,127
60-89 days past due	1,163	2,425
90 days or more past due	4,970	3,622
Total past due loans	8,306	7,174
Current	480,903	470,616
Loans	489,209	477,790
Commercial:Commercial and Industrial [Member]
Commercial:
30-59 days past due	306	76
60-89 days past due	37	0
90 days or more past due		0
Total past due loans	343	76
Current	111,276	99,987
Loans	111,619	100,063
Commercial:Construction [Member]
Commercial:
30-59 days past due	0	0
60-89 days past due	0	0
90 days or more past due	0	0
Total past due loans	0	0
Current	10,557	11,061
Loans	10,557	11,061
Commercial:Secured by Commercial Real Estate [Member]
Commercial:
30-59 days past due	244	407
60-89 days past due	440	1,460
90 days or more past due	4,332	3,097
Total past due loans	5,016	4,964
Current	187,673	187,903
Loans	192,689	192,867
Commercial Secured By Residential Real Estate [Member]
Commercial:
30-59 days past due	1,401	44
60-89 days past due	537	523
90 days or more past due	0	293
Total past due loans	1,938	860
Current	42,164	40,143
Loans	44,102	41,003
State And Political Subdivisions [Member]
Commercial:
30-59 days past due	27	71
60-89 days past due	0	1
90 days or more past due	425	0
Total past due loans	452	72
Current	32,100	34,184
Loans	32,552	34,256
Loans To Depository Institutions [Member]
Commercial:
30-59 days past due	0	0
60-89 days past due	0	0
90 days or more past due	0	0
Total past due loans	0	0
Current	2,250	3,250
Loans	2,250	3,250
Indirect Lease Financing [Member]
Commercial:
30-59 days past due	50	344
60-89 days past due	52	80
90 days or more past due	32	35
Total past due loans	134	459
Current	8,569	9,226
Loans	8,703	9,685
Retail:1-4 Family Residential Mortgages [Member]
Commercial:
30-59 days past due		0
60-89 days past due		197
90 days or more past due	153	0
Total past due loans	153	197
Current	27,621	28,536
Loans	27,774	28,733
Retail Home Equity Loans And Lines [Member]
Commercial:
30-59 days past due	117	152
60-89 days past due	91	153
90 days or more past due	28	197
Total past due loans	236	502
Current	56,541	54,358
Loans	56,777	54,860
Retail:Consumer [Member]
Commercial:
30-59 days past due	28	33
60-89 days past due	6	11
90 days or more past due	0	0
Total past due loans	34	44
Current	2,152	1,968
Loans	$ 2,186	$ 2,012