Shares Used to Compute Earnings Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Schedule Of Computation Of Basic And Diluted Earnings Per Common Share [Line Items]
Income (Loss) from Continuing Operations	$ 23,133	$ 20,332	$ (9,379)
Basic Weighted Average Shares	7,772,000	7,554,000	7,517,000
Diluted:
Weighted Average Shares, Basic	7,772,000	7,554,000	7,517,000
Weighted Average Shares, Diluted	8,101,000	7,663,000	7,517,000
Basic Earnings (Loss) per Share from Continuing Operations	$ 2.98	$ 2.69	$ (1.25)
Diluted Earnings (Loss) per Share from Continuing Operations	$ 2.86	$ 2.65	$ (1.25)
Stock Option
Diluted:
Dilutive Effect of Restricted Stock	291,000	82,000
Restricted Stock
Diluted:
Dilutive Effect of Restricted Stock	38,000	27,000