Other Noncurrent - Additional Information (Detail) (USD $)	3 Months Ended			12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Other Noncurrent Assets Additional Information Detail [Line Items]
Assets held for sale write-down		$ 405,000	$ 1,100,000		$ 1,162,000	$ 1,135,000
Sales proceeds				1,559,000	3,555,000
Loss on the sale of the facility	$ 757,000