Note 20 - Disclosures Regarding Fair Value (Details) - Carrying Amount and Fair Value for Other Financial Instruments (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015		Dec. 31, 2014
Carrying Amount [Member]
Financial instruments - assets
Loans	$ 815,340	[1]	$ 788,228	[1]
Financial instruments - liabilities
Deposits	966,990		928,320
Fair Value [Member]
Financial instruments - assets
Loans	818,918	[1]	788,334	[1]
Financial instruments - liabilities
Deposits	$ 923,502		$ 885,100

[1] Includes gross loans less impaired loans for which fair value exceeds carrying value and allowance for loan losses relative to loans collectively evaluated for impairment