Subsequent Events - Additional Information (Detail) (Subsequent Event, Tyngsborough Massachusetts, Asset Sale Agreement, USD $)	0 Months Ended
	Oct. 10, 2014	Oct. 10, 2014
Subsequent Event | Tyngsborough Massachusetts | Asset Sale Agreement
Subsequent Event [Line Items]
Sale of facilities and assets, value		$ 2,500,000
Nonrefundable deposit to escrow agent	50,000
Future escrow deposit on or before December 1, 2014	50,000
Minimum amount payable on breaches of such representations and warranties or obligations		75,000
Expected date to complete sale	Dec. 31, 2014
Additional deposit payment for extension to complete sale	$ 100,000
Purchase Agreement expected period of extension to complete sale	Feb. 27, 2015