Earnings Per Share Data - Basic and Diluted Earnings Per Share (Detail) (USD $)	3 Months Ended		9 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share [Abstract]
Net income	$ 2,489,000	$ 1,192,000	$ 4,490,000	$ 4,833,000
Common Shares:
Weighted average common shares outstanding	9,518,000	9,518,000	9,518,000	9,518,000
Effect of dilutive stock options
Diluted shares outstanding	9,518,000	9,518,000	9,518,000	9,518,000
Basic:
Net earnings per share	$ 0.26	$ 0.13	$ 0.47	$ 0.51
Diluted:
Net earnings per share	$ 0.26	$ 0.13	$ 0.47	$ 0.51