Note 11 - Fair Value Measurements (Details) - Impairment Charges on Assets Measured at Fair Value on a Nonrecurring Basis (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Note 11 - Fair Value Measurements (Details) - Impairment Charges on Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Impairment charges	$ 1,057	$ 2,146	$ 2,160	$ 4,769
OREO [Member]
Note 11 - Fair Value Measurements (Details) - Impairment Charges on Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Impairment charges	662	1,698	1,549	3,288
Impaired Loans [Member]
Note 11 - Fair Value Measurements (Details) - Impairment Charges on Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Impairment charges	$ 395	$ 448	$ 611	$ 1,481