Note 21 - Disclosures Regarding Fair Value (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Assets
Trading account assets	$ 5,247	$ 5,118
Investment securities available for sale
Available for sale securities fair value	208,772	214,383
Derivative financial instruments, assets	186	204
Total assets measured at fair value on a recurring basis	214,205	219,705
Liabilities
Derivative financial instruments, liabilities	6	7
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale
Available for sale securities fair value	1,943
US Government Agencies Debt Securities [Member]
Investment securities available for sale
Available for sale securities fair value	1,943
State and Municipal [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale
Available for sale securities fair value	1,086
State and Municipal [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale
Available for sale securities fair value	6,210	7,460
State and Municipal [Member]
Investment securities available for sale
Available for sale securities fair value	7,296	7,460
Collateralized Mortgage Obligations (Federal Agencies) [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale
Available for sale securities fair value	2,383
Collateralized Mortgage Obligations (Federal Agencies) [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale
Available for sale securities fair value	84,484	93,132
Collateralized Mortgage Obligations (Federal Agencies) [Member]
Investment securities available for sale
Available for sale securities fair value	86,867	93,132
Other Mortgage-Backed (Federal Agencies) [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale
Available for sale securities fair value	8,457	1,188
Other Mortgage-Backed (Federal Agencies) [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale
Available for sale securities fair value	68,572	74,832
Other Mortgage-Backed (Federal Agencies) [Member]
Investment securities available for sale
Available for sale securities fair value	77,029	76,020
SBA Loan-Backed (Federal Agencies) [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale
Available for sale securities fair value	19,071	20,457
SBA Loan-Backed (Federal Agencies) [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale
Available for sale securities fair value	16,566	17,314
SBA Loan-Backed (Federal Agencies) [Member]
Investment securities available for sale
Available for sale securities fair value	35,637	37,771
Fair Value, Inputs, Level 1 [Member]
Assets
Trading account assets	432	1,347
Investment securities available for sale
Total assets measured at fair value on a recurring basis	33,372	22,992
Fair Value, Inputs, Level 2 [Member]
Assets
Trading account assets	4,815	3,771
Investment securities available for sale
Derivative financial instruments, assets	186	204
Total assets measured at fair value on a recurring basis	180,833	196,713
Liabilities
Derivative financial instruments, liabilities	$ 6	$ 7