Note 8 - Loans and Allowance for Loan Losses (Details) - Allowance For Loan Losses And The Recorded Investment In Loans By Portfolio Segment (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
Note 8 - Loans and Allowance for Loan Losses (Details) - Allowance For Loan Losses And The Recorded Investment In Loans By Portfolio Segment [Line Items]
Total ending allowance balance	$ 21,949	$ 22,943	$ 24,445	$ 25,144	$ 27,113	$ 28,264
Total ending loan balance, net of unearned income	1,010,131		1,004,995
Real Estate Loans [Member]
Note 8 - Loans and Allowance for Loan Losses (Details) - Allowance For Loan Losses And The Recorded Investment In Loans By Portfolio Segment [Line Items]
Allowance for loan losses, individually evaluated for impairment,	4,095		4,732
Allowance for loan losses, collectively evaluated for impairment	15,280		17,522
Total ending allowance balance	19,375	20,240	22,254	21,441	24,221	23,538
Loans individually evaluated for impairment	61,286		63,351
Loans collectively evaluated for impairment	835,566		833,342
Total ending loan balance, net of unearned income	896,852		896,693
Commercial Portfolio Segment [Member]
Note 8 - Loans and Allowance for Loan Losses (Details) - Allowance For Loan Losses And The Recorded Investment In Loans By Portfolio Segment [Line Items]
Allowance for loan losses, individually evaluated for impairment,	823		198
Allowance for loan losses, collectively evaluated for impairment	1,279		1,315
Total ending allowance balance	2,102	2,177	1,513	2,700	2,137	3,508
Loans individually evaluated for impairment	915		207
Loans collectively evaluated for impairment	96,928		89,848
Total ending loan balance, net of unearned income	97,843		90,055
Consumer Portfolio Segment [Member]
Note 8 - Loans and Allowance for Loan Losses (Details) - Allowance For Loan Losses And The Recorded Investment In Loans By Portfolio Segment [Line Items]
Allowance for loan losses, individually evaluated for impairment,	76		213
Allowance for loan losses, collectively evaluated for impairment	396		465
Total ending allowance balance	472	526	678	1,003	755	1,218
Loans individually evaluated for impairment	80		331
Loans collectively evaluated for impairment	15,356		17,916
Total ending loan balance, net of unearned income	15,436		18,247
Total [Member]
Note 8 - Loans and Allowance for Loan Losses (Details) - Allowance For Loan Losses And The Recorded Investment In Loans By Portfolio Segment [Line Items]
Allowance for loan losses, individually evaluated for impairment,	4,994		5,143
Allowance for loan losses, collectively evaluated for impairment	16,955		19,302
Total ending allowance balance	21,949		24,445
Loans individually evaluated for impairment	62,281		63,889
Loans collectively evaluated for impairment	947,850		941,106
Total ending loan balance, net of unearned income	$ 1,010,131		$ 1,004,995