Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Sep. 30, 2015
Statement of Financial Position [Abstract]
Estimated Fair Value	$ 87,161	$ 79,921
Held-to-maturity Securities, Amortized Cost before Other than Temporary Impairment	$ 7,724	$ 8,012
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	30,000,000	30,000,000
Common stock, issued (in shares)	5,231,265	5,232,579
Common stock, outstanding (in shares)	5,231,265	5,232,579