DEBT AND LINES OF CREDIT (Details 2)									1 Months Ended
	Dec. 29, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 29, 2012 U.S. term loan, maturing October 2016 USD ($)	Dec. 31, 2011 U.S. term loan, maturing October 2016 USD ($)	Dec. 29, 2012 Israeli loans, maturing through October 2015 USD ($)	Dec. 31, 2011 Israeli loans, maturing through October 2015 USD ($)	Dec. 29, 2012 Israeli loans, maturing through October 2015 Minimum	Dec. 29, 2012 Israeli loans, maturing through October 2015 Maximum	Jun. 30, 2011 Japanese private placement bonds due June 2014 JPY (¥)	Dec. 29, 2012 Japanese private placement bonds due June 2014 USD ($)	Dec. 31, 2011 Japanese private placement bonds due June 2014 USD ($)	Dec. 29, 2012 Japanese loans due through November 2016 USD ($)	Dec. 31, 2011 Japanese loans due through November 2016 USD ($)	Dec. 29, 2012 Japanese loans due through November 2016 Minimum	Dec. 29, 2012 Japanese loans due through November 2016 Maximum	Dec. 31, 2011 Austrian loans USD ($)
Debt and Lines of credit
Total long-term debt	$ 178,097,000	$ 204,035,000	$ 171,125,000	$ 185,000,000	$ 3,591,000	$ 10,838,000				$ 2,325,000	$ 2,576,000	$ 1,056,000	$ 1,463,000			$ 4,158,000
Current portion of long-term debt	27,339,000	25,992,000
Total long-term debt, less current portion	150,758,000	178,043,000
Debt issued, value									¥ 200,000,000
Interest rate, stated rate (as a percent)									0.62%	0.62%
Interest rate, effective rate (as a percent)			2.96%				2.97%	4.00%						1.25%	1.45%