Long-Term Debt (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Sep. 30, 2012
Debt Instrument [Line Items]
Non current maturities	$ 11,510	$ 21,683
Less – current maturities	4,380	2,000
Total long-term debt	7,130	19,683
Revolving credit agreement
Debt Instrument [Line Items]
Non current maturities	2,630	11,338
Term loan
Debt Instrument [Line Items]
Non current maturities	6,500	8,000
Promissory Note
Debt Instrument [Line Items]
Non current maturities	$ 2,380	$ 2,345