Accounts Payable and Accrued Liabilities - Accounts Payable and Accrued Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Disclosure Accounts Payable And Accrued Liabilities Accounts Payable And Accrued Liabilities Detail [Line Items]
Accounts payable	$ 1,452	$ 2,797
Employee benefits	6,788	6,541
Customer tooling	388	282
Taxes other than on income	378	439
Insurance	243	305
Professional	86	189
Other	370	508
Total	$ 9,705	$ 11,061