Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 4,164	$ 4,090
Accumulated Amortization	(3,037)	(2,893)
Net Amount	1,127	1,197
Product Formulations [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	138	138
Accumulated Amortization	(100)	(95)
Net Amount	38	43
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	750	750
Accumulated Amortization	(415)	(369)
Net Amount	335	381
Approvals and Certifications [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	3,276	3,202
Accumulated Amortization	(2,522)	(2,429)
Net Amount	$ 754	$ 773