Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 4,104	$ 4,090
Accumulated Amortization	(2,967)	(2,893)
Net Amount	1,137	1,197
Product Formulations [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	138	138
Accumulated Amortization	(98)	(95)
Net Amount	40	43
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	750	750
Accumulated Amortization	(382)	(369)
Net Amount	368	381
Approvals and Certifications [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	3,216	3,202
Accumulated Amortization	(2,487)	(2,429)
Net Amount	$ 729	$ 773