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Property and Equipment - Additional Information (Detail) (USD $)
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Dec. 28, 2013
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Dec. 29, 2012
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|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Accumulated amortization | $ 49,415,000 | $ 43,456,000 |
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Capital lease obligations
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| Property, Plant and Equipment [Line Items] | ||
| Furniture and office equipment, gross | 600,000 | 300,000 |
| Accumulated amortization | $ 300,000 | $ 200,000 |