Note 21 - Disclosures Regarding Fair Value (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Assets
Trading account assets	$ 5,381	$ 5,118
Available for sale securities fair value	209,617	214,383
Derivative financial instruments, assets	233	204
Total assets measured at fair value on a recurring basis	215,231	219,705
Liabilities
Derivative financial instruments, liabilities	42	7
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Assets
Available for sale securities fair value	1,946
US Government Agencies Debt Securities [Member]
Assets
Available for sale securities fair value	1,946
State and Municipal [Member] | Fair Value, Inputs, Level 2 [Member]
Assets
Available for sale securities fair value	5,346	7,460
State and Municipal [Member]
Assets
Available for sale securities fair value	5,346	7,460
Collateralized Mortgage Obligations (Federal Agencies) [Member] | Fair Value, Inputs, Level 1 [Member]
Assets
Available for sale securities fair value	2,089
Collateralized Mortgage Obligations (Federal Agencies) [Member] | Fair Value, Inputs, Level 2 [Member]
Assets
Available for sale securities fair value	88,525	93,132
Collateralized Mortgage Obligations (Federal Agencies) [Member]
Assets
Available for sale securities fair value	90,614	93,132
Other Mortgage-Backed (Federal Agencies) [Member] | Fair Value, Inputs, Level 1 [Member]
Assets
Available for sale securities fair value		1,188
Other Mortgage-Backed (Federal Agencies) [Member] | Fair Value, Inputs, Level 2 [Member]
Assets
Available for sale securities fair value	77,332	74,832
Other Mortgage-Backed (Federal Agencies) [Member]
Assets
Available for sale securities fair value	77,332	76,020
SBA Loan-Backed (Federal Agencies) [Member] | Fair Value, Inputs, Level 1 [Member]
Assets
Available for sale securities fair value	18,289	20,457
SBA Loan-Backed (Federal Agencies) [Member] | Fair Value, Inputs, Level 2 [Member]
Assets
Available for sale securities fair value	16,090	17,314
SBA Loan-Backed (Federal Agencies) [Member]
Assets
Available for sale securities fair value	34,379	37,771
Fair Value, Inputs, Level 1 [Member]
Assets
Trading account assets	616	1,347
Total assets measured at fair value on a recurring basis	20,994	22,992
Fair Value, Inputs, Level 2 [Member]
Assets
Trading account assets	4,765	3,771
Derivative financial instruments, assets	233	204
Total assets measured at fair value on a recurring basis	194,237	196,713
Liabilities
Derivative financial instruments, liabilities	$ 42	$ 7