Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011
Balance Sheets [Abstract]
Property and equipment, accumulated depreciation	$ 381	$ 396
Other assets, accumulated amortization	$ 109	$ 107
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	5,754,232	5,741,451
Common stock, shares outstanding	5,754,232	5,741,451