Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Summarized Segment Information (Detail)

v3.5.0.2
Segment Information - Summarized Segment Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jul. 02, 2016
Jul. 04, 2015
Jul. 02, 2016
Jul. 04, 2015
Jan. 02, 2016
Segment Reporting Information [Line Items]          
Net sales $ 78,055 $ 76,462 $ 158,861 $ 152,850  
Gross profit 23,754 20,868 48,346 42,346  
Operating costs [1] 22,889 21,975 46,299 43,471  
Income (loss) from operations 865 (1,107) 2,047 (1,125)  
Capital expenditures 1,611 1,681 2,887 3,832  
Depreciation and amortization 1,853 1,822 3,704 3,756  
Total assets, net 76,218 78,115 76,218 78,115 $ 83,756
Operating Segments | Base USAP          
Segment Reporting Information [Line Items]          
Net sales 77,999 76,411 158,745 152,736  
Gross profit 23,701 20,817 48,233 42,232  
Operating costs [1] 22,132 21,235 44,753 41,955  
Income (loss) from operations 1,569 (418) 3,480 277  
Capital expenditures 1,350 1,373 2,355 3,338  
Depreciation and amortization 1,556 1,484 3,100 3,033  
Total assets, net 71,944 70,918 71,944 70,918  
Operating Segments | AutoMD          
Segment Reporting Information [Line Items]          
Net sales 56 51 116 114  
Gross profit 53 51 113 114  
Operating costs [1] 757 740 1,546 1,516  
Income (loss) from operations (704) (689) (1,433) (1,402)  
Capital expenditures 261 308 532 494  
Depreciation and amortization 297 338 604 723  
Total assets, net $ 4,274 $ 7,197 $ 4,274 $ 7,197  
[1] Operating costs for AutoMD primarily consist of depreciation and amortization on fixed assets and personnel costs. Indirect costs are not allocated to AutoMD.