Note 5 - Loans (Details) - Loans to Directors and Their Associates - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Loans to Directors and Their Associates [Abstract]
Balance as of January 1	$ 11,790	$ 8,667
New loans	0	0
Repayment of term loans	(560)	(1,222)
Changes in balances of revolving lines of credit	562	4,345
Adjustment for Board member resignation	(10,926)	0
Balance as of December 31	$ 866	$ 11,790