Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting (Details)

v2.4.0.6
Segment Reporting (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 29, 2012
Oct. 01, 2011
Sep. 29, 2012
Oct. 01, 2011
Schedule of segment information        
Sales to unaffiliated customers $ 48,825 $ 53,041 $ 161,131 $ 158,514
Operating income 13,195 15,499 44,923 44,797
Depreciation 1,605 1,642 4,890 4,955
Capital expenditures 1,951 4,285 6,703 7,095
United States [Member]
       
Schedule of segment information        
Sales to unaffiliated customers 34,302 34,897 109,381 100,515
Intercompany sales 7,331 8,763 24,872 26,722
Operating income 11,069 12,119 35,966 33,481
Depreciation 1,302 1,294 3,933 3,879
Capital expenditures 1,735 4,121 5,949 6,631
Korea [Member]
       
Schedule of segment information        
Sales to unaffiliated customers 3,495 5,081 14,401 16,778
Operating income 185 575 1,400 2,175
Depreciation 36 28 93 83
Capital expenditures 4 89 24 234
Germany [Member]
       
Schedule of segment information        
Sales to unaffiliated customers 6,267 7,824 20,741 22,320
Intercompany sales 31 60 75 176
Operating income 1,296 2,028 4,488 5,690
Depreciation 82 85 242 272
Capital expenditures 6 7 38 57
United Kingdom [Member]
       
Schedule of segment information        
Sales to unaffiliated customers 4,761 5,239 16,608 18,901
Intercompany sales 443 405 1,289 1,188
Operating income 912 892 3,131 3,379
Depreciation 185 235 622 721
Capital expenditures 206 68 692 173
Elimination [Member]
       
Schedule of segment information        
Intercompany sales (7,805) (9,228) (26,236) (28,086)
Operating income $ (267) $ (115) $ (62) $ 72