Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Summarized Segment Information (Detail)

v2.4.0.8
Segment Information - Summarized Segment Information (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Sep. 27, 2014
Sep. 28, 2013
Dec. 28, 2013
Segment Reporting Information [Line Items]          
Net sales $ 67,965 $ 61,724 $ 212,940 $ 195,018  
Gross profit 18,414 17,907 59,535 56,658  
Operating costs 20,630 [1] 19,153 [1] 63,195 [1] 70,388 [1]  
Loss from operations (2,216) (1,246) (3,660) (13,730)  
Total assets, net of accumulated depreciation 73,684   73,684   69,182
Base USAP
          
Segment Reporting Information [Line Items]          
Net sales 67,885 61,655 212,717 194,756  
Gross profit 18,334 17,838 59,312 56,396  
Operating costs 20,016 [1] 18,647 [1] 61,396 [1] 68,651 [1]  
Loss from operations (1,682) (809) (2,084) (12,255)  
Total assets, net of accumulated depreciation 71,856   71,856   67,039
AutoMD
          
Segment Reporting Information [Line Items]          
Net sales 80 69 223 262  
Gross profit 80 69 223 262  
Operating costs 614 [1] 506 [1] 1,799 [1] 1,737 [1]  
Loss from operations (534) (437) (1,576) (1,475)  
Total assets, net of accumulated depreciation $ 1,828   $ 1,828   $ 2,143
[1] Operating costs for AutoMD primarily consist of depreciation on fixed assets.