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 9 Months Ended
Oct. 01, 2016
Oct. 03, 2015
Oct. 01, 2016
Oct. 03, 2015
Jan. 02, 2016
Segment Reporting Information [Line Items]          
Net sales $ 73,515 $ 70,648 $ 232,376 $ 223,498  
Gross profit 22,414 21,042 70,760 63,388  
Operating costs [1] 22,498 21,264 68,797 64,735  
(Loss) income from operations (84) (222) 1,963 (1,347)  
Capital expenditures 1,683 1,968 4,570 5,800  
Depreciation and amortization 1,897 1,862 5,601 5,618  
Total assets, net 83,466 80,261 83,466 80,261 $ 83,756
Operating Segments | Base USAP          
Segment Reporting Information [Line Items]          
Net sales 73,452 70,573 232,197 223,309  
Gross profit 22,371 20,967 70,604 63,199  
Operating costs [1] 21,732 20,367 66,485 62,322  
(Loss) income from operations 639 600 4,119 877  
Capital expenditures 1,480 1,636 3,835 4,974  
Depreciation and amortization 1,611 1,539 4,711 4,571  
Total assets, net 79,771 73,946 79,771 73,946  
Operating Segments | AutoMD          
Segment Reporting Information [Line Items]          
Net sales 63 75 179 189  
Gross profit 43 75 156 189  
Operating costs [1] 766 897 2,312 2,413  
(Loss) income from operations (723) (822) (2,156) (2,224)  
Capital expenditures 203 332 735 826  
Depreciation and amortization 286 323 890 1,047  
Total assets, net $ 3,695 $ 6,315 $ 3,695 $ 6,315  
[1] Operating costs for AutoMD primarily consist of depreciation and amortization on fixed assets and personnel costs. Indirect costs are not allocated to AutoMD.