Note 20 - Quarterly Financial Data (Unaudited) (Details) - Quarterly Financial Data (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Note 20 - Quarterly Financial Data (Unaudited) (Details) - Quarterly Financial Data [Line Items]
Interest income	$ 66,733	$ 71,222	$ 78,349
Interest expense	11,995	18,258	24,670
Net interest income	54,738	52,964	53,679
Provision for loan losses	(2,600)	2,772	13,487
Net interest income after provision for loan losses	57,338	50,192	40,192
Noninterest income	22,116	24,654	24,391
Noninterest expense	61,573	59,787	62,492
Income Before Income Taxes	17,881	15,059	2,091
Income tax expense	4,435	2,910	(647)
Net income	13,446	12,149	2,738
Less dividends and accretion on preferred shares	1,951	1,922	1,896
Net income	11,495	10,227	842
Net income (in Dollars per share)	$ 1.54	$ 1.37	$ 0.11
Weighted average shares outstanding, basic and diluted (in Shares)	7,474	7,457	7,424
First Quarter [Member]
Note 20 - Quarterly Financial Data (Unaudited) (Details) - Quarterly Financial Data [Line Items]
Interest income	16,742	18,410
Interest expense	3,166	5,203
Net interest income	13,576	13,207
Provision for loan losses	(632)	977
Net interest income after provision for loan losses	14,208	12,230
Noninterest income	5,411	6,028
Noninterest expense	14,509	14,593
Income Before Income Taxes	5,110	3,665
Income tax expense	1,318	356
Net income	3,792	3,309
Less dividends and accretion on preferred shares	485	478
Net income	3,307	2,831
Net income (in Dollars per share)	$ 0.44	$ 0.38
Weighted average shares outstanding, basic and diluted (in Shares)	7,470	7,447
Second Quarter [Member]
Note 20 - Quarterly Financial Data (Unaudited) (Details) - Quarterly Financial Data [Line Items]
Interest income	16,631	18,087
Interest expense	3,038	4,720
Net interest income	13,593	13,367
Provision for loan losses	(362)	1,341
Net interest income after provision for loan losses	13,955	12,026
Noninterest income	5,441	6,412
Noninterest expense	14,722	14,401
Income Before Income Taxes	4,674	4,037
Income tax expense	1,127	890
Net income	3,547	3,147
Less dividends and accretion on preferred shares	487	480
Net income	3,060	2,667
Net income (in Dollars per share)	$ 0.41	$ 0.36
Weighted average shares outstanding, basic and diluted (in Shares)	7,473	7,454
Third Quarter [Member]
Note 20 - Quarterly Financial Data (Unaudited) (Details) - Quarterly Financial Data [Line Items]
Interest income	16,563	17,578
Interest expense	2,953	4,511
Net interest income	13,610	13,067
Provision for loan losses	(586)	(256)
Net interest income after provision for loan losses	14,196	13,323
Noninterest income	5,678	6,166
Noninterest expense	15,984	15,347
Income Before Income Taxes	3,890	4,142
Income tax expense	855	1,051
Net income	3,035	3,091
Less dividends and accretion on preferred shares	489	481
Net income	2,546	2,610
Net income (in Dollars per share)	$ 0.34	$ 0.35
Weighted average shares outstanding, basic and diluted (in Shares)	7,475	7,461
Fourth Quarter [Member]
Note 20 - Quarterly Financial Data (Unaudited) (Details) - Quarterly Financial Data [Line Items]
Interest income	16,797	17,147
Interest expense	2,838	3,824
Net interest income	13,959	13,323
Provision for loan losses	(1,020)	710
Net interest income after provision for loan losses	14,979	12,613
Noninterest income	5,586	6,048
Noninterest expense	16,358	15,446
Income Before Income Taxes	4,207	3,215
Income tax expense	1,135	613
Net income	3,072	2,602
Less dividends and accretion on preferred shares	490	483
Net income	$ 2,582	$ 2,119
Net income (in Dollars per share)	$ 0.35	$ 0.28
Weighted average shares outstanding, basic and diluted (in Shares)	7,477	7,466