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
Mar. 29, 2014
Mar. 30, 2013
Dec. 28, 2013
Segment Reporting Information [Line Items]      
Net sales $ 68,028 $ 65,405  
Gross profit 20,701 19,738  
Operating costs 20,206 22,880  
Income (loss) from operations 495 (3,142)  
Total assets, net of accumulated depreciation 18,810   19,663
Base USAP [Member]
     
Segment Reporting Information [Line Items]      
Net sales 67,949 65,304  
Gross profit 20,622 19,637  
Operating costs 19,645 22,290  
Income (loss) from operations 977 (2,653)  
Total assets, net of accumulated depreciation 16,864   17,520
AutoMD [Member]
     
Segment Reporting Information [Line Items]      
Net sales 79 101  
Gross profit 79 101  
Operating costs 561 590  
Income (loss) from operations (482) (489)  
Total assets, net of accumulated depreciation $ 1,946   $ 2,143