Acquisition (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	0 Months Ended		3 Months Ended
	Jun. 30, 2013	Jun. 30, 2013	Jul. 12, 2013 item	Jul. 12, 2013	Mar. 31, 2013	Jun. 29, 2014	Dec. 31, 2013	Sep. 29, 2013
Fair values of the assets acquired, net of cash acquired, and the liabilities assumed at the Merger Date
Goodwill						$ 51,188	$ 51,225
Interest expense | New Colt
Unaudited pro forma operating results
Net income (loss)	1,579	3,208
New Colt
Acquisition
Number of manufacturers of Colt firearms to be consolidated			2
Aggregate purchase price			82,543
Aggregate purchase price paid in cash			5,000
Merger consideration reinvested by certain investors			4,000
Fair values of the assets acquired, net of cash acquired, and the liabilities assumed at the Merger Date
Cash and cash equivalents			3,791	3,791
Accounts receivable			3,318	3,318
Inventories			7,585	7,585
Property and equipment			5,182	5,182
Other assets			3,090	3,090
Intangible assets with finite lives			9,340	9,340
Trademarks			50,100	50,100
Goodwill			36,974	36,974
Total assets acquired			119,380	119,380
Accounts payable and accrued expenses			8,808	8,808
Customer advances and deferred revenue			1,832	1,832
Capital lease obligations			393	393
Pension and retirement liabilities			9,357	9,357
Deferred tax liabilities			16,447	16,447
Total liabilities assumed			36,837	36,837
Net assets acquired			82,543	82,543
Unaudited pro forma operating results
Net sales	85,209	167,022
Net income (loss)	4,709	10,254
New Colt | License agreements
Fair values of the assets acquired, net of cash acquired, and the liabilities assumed at the Merger Date
Intangible assets with finite lives			5,240	5,240
Weighted-average useful lives of acquired assets				6 years
New Colt | Developed technology
Fair values of the assets acquired, net of cash acquired, and the liabilities assumed at the Merger Date
Intangible assets with finite lives			2,970	2,970
Weighted-average useful lives of acquired assets				20 years
New Colt | Backlog
Fair values of the assets acquired, net of cash acquired, and the liabilities assumed at the Merger Date
Intangible assets with finite lives			1,130	1,130
Weighted-average useful lives of acquired assets				3 years
New Colt | Amortization of finite-lived intangible assets
Unaudited pro forma operating results
Net income (loss)	664	1,328
New Colt | Common units
Acquisition
Aggregate consideration from issue and sale of common units			9,000
New Colt | Term Loan
Acquisition
Proceeds from senior secured term loan			50,000
Unaudited pro forma operating results
Net income (loss)					50,000
New Colt | Trademarks
Acquisition
Settlement gain on pre-existing relationship								15,264
Gross settlement gain								16,320
Prepaid license balance								$ 1,056