Summary of Significant Accounting Policies (Details 9) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended				12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Oct. 02, 2011	Jul. 03, 2011	Apr. 03, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011 Previously reported	Dec. 31, 2010 Previously reported	Dec. 31, 2011 Adjustments	Dec. 31, 2010 Adjustments	Dec. 31, 2010 Initial application of purchase accounting related to acquisition of Colt Canada Previously reported	Dec. 31, 2009 Initial application of purchase accounting related to acquisition of Colt Canada Previously reported	Mar. 31, 2011 Initial application of purchase accounting related to acquisition of Colt Canada Adjustments
2010 and 2009 Revisions
Goodwill	$ 14,947				$ 14,713				$ 14,947	$ 14,713	$ 14,950								$ 3,259
Deferred tax liabilities	1,330				1,259				1,330	1,259									3,259
Net loss	3,376	2,894	(6,237)	(7,088)	5,326	3,373	(1,919)	(1,792)	(7,055)	4,988	(11,149)		5,196	(11,254)	(208)	105	(160)
Opening balance in consolidated statements of changes in deficit	(151,287)				(142,834)				(151,287)	(142,834)	(141,398)	(110,818)						1,673
Prior Period Adjustments
Pre-tax adjustments , related to immaterial errors in prior periods					$ 316			$ 127		$ 621