Note 10 - Fair Value of Financial Instruments (Details) - Fair value measured on a non-recurring basis: (Fair Value, Measurements, Nonrecurring [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Note 10 - Fair Value of Financial Instruments (Details) - Fair value measured on a non-recurring basis: [Line Items]
Assets, carried at fair value on a non-recurring basis	$ 41,704	$ 60,294
Loans Held For Sale [Member] | Fair Value, Inputs, Level 3 [Member]
Note 10 - Fair Value of Financial Instruments (Details) - Fair value measured on a non-recurring basis: [Line Items]
Assets, carried at fair value on a non-recurring basis	335	5,313
Loans Held For Sale [Member]
Note 10 - Fair Value of Financial Instruments (Details) - Fair value measured on a non-recurring basis: [Line Items]
Assets, carried at fair value on a non-recurring basis	335	5,313
Impaired loans [Member] | Fair Value, Inputs, Level 3 [Member]
Note 10 - Fair Value of Financial Instruments (Details) - Fair value measured on a non-recurring basis: [Line Items]
Assets, carried at fair value on a non-recurring basis	38,778	49,703
Impaired loans [Member]
Note 10 - Fair Value of Financial Instruments (Details) - Fair value measured on a non-recurring basis: [Line Items]
Assets, carried at fair value on a non-recurring basis	38,778	49,703
Other real estate owned [Member] | Fair Value, Inputs, Level 3 [Member]
Note 10 - Fair Value of Financial Instruments (Details) - Fair value measured on a non-recurring basis: [Line Items]
Assets, carried at fair value on a non-recurring basis	2,591	5,278
Other real estate owned [Member]
Note 10 - Fair Value of Financial Instruments (Details) - Fair value measured on a non-recurring basis: [Line Items]
Assets, carried at fair value on a non-recurring basis	2,591	5,278
Fair Value, Inputs, Level 3 [Member]
Note 10 - Fair Value of Financial Instruments (Details) - Fair value measured on a non-recurring basis: [Line Items]
Assets, carried at fair value on a non-recurring basis	$ 41,704	$ 60,294