Note 11 - Intangible Assets (Details) - Gross Carrying Amount and Accumulated Amortization of Intangible Assets - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	$ 4,156	$ 3,597
Finite-lived intangible assets, accumulated amortization	(2,299)	(2,055)
Finite-lived intangible assets, unamortized intangible assets	1,857	1,542
Mortgage Servicing Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	3,736	3,597
Finite-lived intangible assets, accumulated amortization	(2,290)	(2,055)
Finite-lived intangible assets, unamortized intangible assets	1,446	$ 1,542
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	420
Finite-lived intangible assets, accumulated amortization	(9)
Finite-lived intangible assets, unamortized intangible assets	$ 411