Other Accrued Liabilities (Detail) (USD $)	Sep. 30, 2012
Debt Instrument [Line Items]
Other Accrued Liabilities	$ 856,000
Wages and other employee benefits
Debt Instrument [Line Items]
Other Accrued Liabilities	270,000
Taxes, other than income tax
Debt Instrument [Line Items]
Other Accrued Liabilities	436,000
Other
Debt Instrument [Line Items]
Other Accrued Liabilities	$ 150,000