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	Jun. 30, 2013	Dec. 31, 2012
Note 8 - Loans and Allowance for Loan Losses (Details) - Allowance For Loan Losses And The Recorded Investment In Loans By Portfolio Segment [Line Items]
Ending loan balance	$ 1,004,766	$ 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]
Individually evaluated for impairment	4,334	4,732
Collectively evaluated for impairment	15,906	17,522
Total ending allowance balance	20,240	22,254
Loans individually evaluated for impairment	60,278	63,351
Loans collectively evaluated for impairment	837,525	833,342
Ending loan balance	897,803	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]
Individually evaluated for impairment	892	198
Collectively evaluated for impairment	1,285	1,315
Total ending allowance balance	2,177	1,513
Loans individually evaluated for impairment	979	207
Loans collectively evaluated for impairment	89,662	89,848
Ending loan balance	90,641	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]
Individually evaluated for impairment	118	213
Collectively evaluated for impairment	408	465
Total ending allowance balance	526	678
Loans individually evaluated for impairment	233	331
Loans collectively evaluated for impairment	16,089	17,916
Ending loan balance	16,322	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]
Individually evaluated for impairment	5,344	5,143
Collectively evaluated for impairment	17,599	19,302
Total ending allowance balance	22,943	24,445
Loans individually evaluated for impairment	61,490	63,889
Loans collectively evaluated for impairment	943,276	941,106
Ending loan balance	$ 1,004,766	$ 1,004,995