Condensed Financial Information - Parent Company Only (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Condensed Financial Statements, Captions [Line Items]
Income—interest and dividends	$ 23,004	$ 24,033	$ 24,575
Expenses—other	1,404	2,098	1,530
Loss before provision for income taxes and equity in undistributed net income (loss) of subsidiary	4,104	2,830	1,682
Benefit for income taxes	1,490	1,047	635
Net income attributable to common stockholders	2,614	1,783	1,047
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Income—interest and dividends	0	0	0
Expenses—other	146	182	107
Loss before provision for income taxes and equity in undistributed net income (loss) of subsidiary	(146)	(182)	(107)
Benefit for income taxes	(58)	(73)	(43)
Loss before equity in undistributed net income (loss) of subsidiary	(88)	(109)	(64)
Equity in undistributed net income of subsidiary	2,702	1,892	1,111
Net income attributable to common stockholders	$ 2,614	$ 1,783	$ 1,047