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Debt and Leases - Leases (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended			1 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Warehouse and distribution center acre	Aug. 31, 2005 Core Composites Cincinnati, LLC Manufacturing facility	Aug. 31, 2011 Core Specialty Composites, LLC Manufacturing facility
Leases:
Operating lease duration			5 years	7 years	3 years
Number of acres leased			2
Rental expense	$ 994	$ 678
Future minimum operating lease payments:
2013	256
2014	213
2015	139
2016	139
2017	115
Total minimum lease payments	$ 862

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