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Other Identifiable Intangible Assets - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 29, 2013
Dec. 30, 2012
Jan. 01, 2012
Intangible Assets Net Excluding Goodwill [Abstract]      
Amortization of intangibles $ 333,000 $ 416,000 $ 432,000
Impairment of finite-lived identifiable intangible assets 0    
Amortization expense for 2014 300,000    
Amortization expense for 2015 300,000    
Amortization expense for 2016 300,000    
Amortization expense for 2017 300,000    
Amortization expense for 2018 $ 300,000