Note 9 - Subordinated Notes - Schedule of Subordinated Notes (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 18, 2015
Subordinated notes	$ 7,224	$ 7,194
Subordinated Debt [Member]
Principal	7,500	7,500	$ 7,500
Unamortized debt issuance costs	276	306
Subordinated notes	$ 7,224	$ 7,194