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 6 Months Ended
Jun. 30, 2012
Jul. 02, 2011
Jun. 30, 2012
Jul. 02, 2011
Schedule of segment information        
Sales to unaffiliated customers $ 57,031 $ 54,770 $ 112,305 $ 105,473
Intercompany sales            
Operating income 16,464 15,384 31,728 29,294
Depreciation 1,634 1,655 3,286 3,313
Capital expenditures 2,966 1,699 4,752 2,810
United States [Member]
       
Schedule of segment information        
Sales to unaffiliated customers 39,458 35,152 75,078 65,618
Intercompany sales 8,466 8,470 17,541 17,959
Operating income 13,116 11,383 24,897 21,359
Depreciation 1,306 1,292 2,631 2,585
Capital expenditures 2,621 1,615 4,214 2,510
Korea [Member]
       
Schedule of segment information        
Sales to unaffiliated customers 4,953 5,674 10,906 11,697
Intercompany sales            
Operating income 508 659 1,214 1,599
Depreciation 31 29 57 54
Capital expenditures 9 23 20 146
Germany [Member]
       
Schedule of segment information        
Sales to unaffiliated customers 7,054 7,308 14,474 14,496
Intercompany sales 21 63 44 116
Operating income 1,647 1,922 3,192 3,662
Depreciation 78 88 160 188
Capital expenditures 15 5 32 50
United Kingdom [Member]
       
Schedule of segment information        
Sales to unaffiliated customers 5,566 6,636 11,847 13,662
Intercompany sales 473 407 847 783
Operating income 1,085 1,281 2,219 2,487
Depreciation 219 246 438 486
Capital expenditures 321 56 486 104
Elimination [Member]
       
Schedule of segment information        
Sales to unaffiliated customers            
Intercompany sales (8,960) (8,940) (18,432) (18,858)
Operating income 108 139 206 187
Depreciation            
Capital expenditures