Sale of Product Line - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2015	Jan. 31, 2015
Sale Of Product Line [Line Items]
Gain from the kits sale	$ 2,862,000
J6 Polymers, LLC [Member]
Sale Of Product Line [Line Items]
Gain from the kits sale	$ 2,862,000
J6 Polymers, LLC [Member] | Polyurethane Systems Product Lines [Member]
Sale Of Product Line [Line Items]
Sale of product line for cash		$ 3,262,000