Note 7 - Fair Value of Financial Instruments (Details) - SBA Servicing Assets Activity - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
SBA Servicing Assets Activity [Abstract]
Beginning balance	$ 4,319	$ 4,067	$ 4,099	$ 3,477
Additions	227	158	672	733
Fair value adjustments	(372)	(185)	(597)	(170)
Ending balance	$ 4,174	$ 4,040	$ 4,174	$ 4,040