Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

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Commitments and Contingencies - Additional Information (Detail) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended
Apr. 17, 2013
Jun. 30, 2015
Jul. 04, 2015
Jun. 28, 2014
Jul. 04, 2015
Jun. 28, 2014
Jul. 01, 2015
Other Commitments [Line Items]              
Initial lease term         5 years    
Facility rent expense     $ 399 $ 612 $ 764 $ 1,075  
Purchase commitments             $ 1,227
Increase in capital lease payments   $ 368     $ 368 0  
Nia Chloe, LLC | Director              
Other Commitments [Line Items]              
Facility rent expense       $ 237   $ 331  
LaSalle, Illinois Facility | STORE              
Other Commitments [Line Items]              
Period of lease under sale and leaseback transaction 20 years            
Excess of net proceeds over the net carrying value of capital lease under sale leaseback transaction $ 376            
Facility subject to capital lease | LaSalle, Illinois Facility | STORE              
Other Commitments [Line Items]              
Estimated useful life of property and equipment 20 years