Note 7 - 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, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
Note 7 - 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	$ 3,616		$ 4,102
Allowance for loan losses, collectively evaluated for impairment	12,076		16,475
Total ending allowance balance	15,692	17,123	20,577	21,949	22,943	24,445
Loans individually evaluated for impairment	48,881		58,339
Loans collectively evaluated for impairment	904,951		941,544
Total ending loan balance, net of unearned income	953,832		999,883
Real Estate Loans [Member]
Note 7 - 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	3,457		3,816
Allowance for loan losses, collectively evaluated for impairment	10,633		14,900
Total ending allowance balance	14,090	15,448	18,716	19,375	20,240	22,254
Loans individually evaluated for impairment	48,632		57,932
Loans collectively evaluated for impairment	792,742		833,149
Total ending loan balance, net of unearned income	841,374		891,081
Commercial Portfolio Segment [Member]
Note 7 - 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	132		200
Allowance for loan losses, collectively evaluated for impairment	1,171		1,209
Total ending allowance balance	1,303	1,338	1,409	2,102	2,177	1,513
Loans individually evaluated for impairment	222		317
Loans collectively evaluated for impairment	98,253		93,393
Total ending loan balance, net of unearned income	98,475		93,710
Consumer Portfolio Segment [Member]
Note 7 - 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	27		86
Allowance for loan losses, collectively evaluated for impairment	272		366
Total ending allowance balance	299	337	452	472	526	678
Loans individually evaluated for impairment	27		90
Loans collectively evaluated for impairment	13,956		15,002
Total ending loan balance, net of unearned income	$ 13,983		$ 15,092