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Accounts Payable and Accrued Liabilities - Accounts Payable and Accrued Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Payables And Accruals [Abstract]    
Accounts payable $ 3,616 $ 1,452
Accrued liabilities:    
Employee benefits 6,036 6,788
Taxes other than on income 554 378
Customer tooling 426 388
Insurance 215 243
Sales rebates 204 45
Professional 147 86
Other 338 325
Total accounts payable and accrued liabilities $ 11,536 $ 9,705