Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Sep. 30, 2015
Statement of Financial Position [Abstract]
Property and equipment, accumulated depreciation	$ 888	$ 733
Other assets, accumulated amortization	$ 438	$ 328
Adjustable rate preferred stock, stated value	$ 25	$ 25
Adjustable rate preferred stock, shares authorized	5,000,000	5,000,000
Adjustable rate preferred stock, shares issued	0	0
Adjustable rate preferred stock, shares outstanding	0	0
Common stock, no par value
Common stock, shares authorized	15,000,000	15,000,000
Common stock, shares issued	5,066,680	5,046,628
Common stock, shares outstanding	5,066,680	5,046,628