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Accounts and Notes Receivable (Detail) (USD $)	12 Months Ended
Accounts and Notes Receivable (Detail) (USD $)	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Allowance for Doubtful Accounts Receivable, Recoveries	$ 600,000
Provision for Doubtful Accounts	$ (613,000)	$ 811,000	$ 808,000

Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected).

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