Note 8 - Loans and Allowance for Loan Losses (Details) - Impaired Loans (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
With no specific allowance recorded:- Recorded Investment	$ 20,478	$ 22,515
With no specific allowance recorded:- Unpaid Principal Balance	21,563	23,404
With an allowance recorded: Recorded investment (after charge-offs)	4,414	5,102
With an allowance recorded:Unpaid principal balance	4,921	5,609
With an allowance recorded:Related allowance	2,330	2,022
Total - Recorded Investment	24,892	27,617
Total - Unpaid Principal Balance	26,484	29,013
Total - Related Allowance	2,330	2,022
Total - Average Recorded Investment	27,039	29,254
Total - Interest Income Recognized	389	560
Commercial:Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
With no specific allowance recorded:- Recorded Investment	6,964	8,222
With no specific allowance recorded:- Unpaid Principal Balance	7,193	8,417
With an allowance recorded: Recorded investment (after charge-offs)	1,702	2,082
With an allowance recorded:Unpaid principal balance	1,999	2,350
With an allowance recorded:Related allowance	1,351	1,106
Total - Recorded Investment	8,666	10,304
Total - Unpaid Principal Balance	9,192	10,767
Total - Related Allowance	1,351	1,106
Total - Average Recorded Investment	9,996	6,732
Total - Interest Income Recognized	175	34
Commercial:Construction [Member]
Financing Receivable, Impaired [Line Items]
With no specific allowance recorded:- Recorded Investment	1,110	916
With no specific allowance recorded:- Unpaid Principal Balance	1,425	1,140
With an allowance recorded: Recorded investment (after charge-offs)		435
With an allowance recorded:Unpaid principal balance		493
With an allowance recorded:Related allowance		121
Total - Recorded Investment	1,110	1,351
Total - Unpaid Principal Balance	1,425	1,633
Total - Related Allowance		121
Total - Average Recorded Investment	1,219	3,179
Total - Interest Income Recognized	1	46
Commercial:Secured by Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
With no specific allowance recorded:- Recorded Investment	11,526	12,251
With no specific allowance recorded:- Unpaid Principal Balance	11,961	12,568
With an allowance recorded: Recorded investment (after charge-offs)	177	37
With an allowance recorded:Unpaid principal balance	181	37
With an allowance recorded:Related allowance	20	9
Total - Recorded Investment	11,703	12,288
Total - Unpaid Principal Balance	12,142	12,605
Total - Related Allowance	20	9
Total - Average Recorded Investment	12,331	13,765
Total - Interest Income Recognized	210	399
Commercial Secured By Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
With no specific allowance recorded:- Recorded Investment	556	728
With no specific allowance recorded:- Unpaid Principal Balance	617	839
With an allowance recorded: Recorded investment (after charge-offs)	2,181	2,105
With an allowance recorded:Unpaid principal balance	2,353	2,248
With an allowance recorded:Related allowance	842	639
Total - Recorded Investment	2,737	2,833
Total - Unpaid Principal Balance	2,970	3,087
Total - Related Allowance	842	639
Total - Average Recorded Investment	2,758	3,090
Total - Interest Income Recognized		23
State And Political Subdivisions [Member]
Financing Receivable, Impaired [Line Items]
Total - Average Recorded Investment		1,636
Total - Interest Income Recognized		53
Indirect Lease Financing [Member]
Financing Receivable, Impaired [Line Items]
With no specific allowance recorded:- Recorded Investment	33	13
With no specific allowance recorded:- Unpaid Principal Balance	36	16
With an allowance recorded: Recorded investment (after charge-offs)		24
With an allowance recorded:Unpaid principal balance		27
With an allowance recorded:Related allowance		3
Total - Recorded Investment	33	37
Total - Unpaid Principal Balance	36	43
Total - Related Allowance		3
Total - Average Recorded Investment	26	63
Retail:1-4 Family Residential Mortgages [Member]
Financing Receivable, Impaired [Line Items]
With no specific allowance recorded:- Recorded Investment	235	250
With no specific allowance recorded:- Unpaid Principal Balance	255	274
With an allowance recorded: Recorded investment (after charge-offs)	271	272
With an allowance recorded:Unpaid principal balance	282	284
With an allowance recorded:Related allowance	90	63
Total - Recorded Investment	506	522
Total - Unpaid Principal Balance	537	558
Total - Related Allowance	90	63
Total - Average Recorded Investment	515	495
Total - Interest Income Recognized	3	5
Retail Home Equity Loans And Lines [Member]
Financing Receivable, Impaired [Line Items]
With no specific allowance recorded:- Recorded Investment	54	135
With no specific allowance recorded:- Unpaid Principal Balance	76	150
With an allowance recorded: Recorded investment (after charge-offs)	83	131
With an allowance recorded:Unpaid principal balance	106	154
With an allowance recorded:Related allowance	27	70
Total - Recorded Investment	137	266
Total - Unpaid Principal Balance	182	304
Total - Related Allowance	27	70
Total - Average Recorded Investment	192	293
Retail:Consumer [Member]
Financing Receivable, Impaired [Line Items]
With an allowance recorded: Recorded investment (after charge-offs)		16
With an allowance recorded:Unpaid principal balance		16
With an allowance recorded:Related allowance		11
Total - Recorded Investment		16
Total - Unpaid Principal Balance		16
Total - Related Allowance		11
Total - Average Recorded Investment	$ 2	$ 1