Note 11 - Other Borrowings (Details) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Minimum [Member]
Federal Home Loan Bank advances, rates	0.39%	0.39%
Maximum [Member]
Federal Home Loan Bank advances, rates	5.57%	5.57%
London Interbank Offered Rate (LIBOR) [Member] | Line of Credit [Member]
Floating rate	1.95%	1.95%
London Interbank Offered Rate (LIBOR) [Member] | Notes Payable to Banks [Member]
Floating rate	1.95%	1.95%
Total credit line	$ 14,750	$ 14,750