EMPLOYEE BENEFIT PLANS (Details 2) (USD $)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Estimated benefit payments for the next 10 years
2013	$ 2,363,000
2014	1,210,000
2015	2,091,000
2016	1,137,000
2017	2,140,000
Thereafter	21,218,000
Estimated Benefit Payments	30,159,000
Expected contribution in the next fiscal year
Expected contribution by employer in the next fiscal year	$ 1,900,000
Weighted-average rates used to determine the net periodic benefit costs
Discount rate (as a percent)	2.29%	2.44%	4.10%
Rate of increase in salary levels (as a percent)	2.38%	2.25%	3.15%
Expected long-term rate of return on assets (as a percent)	1.59%	1.59%	1.86%
Weighted-average rates used to determine projected benefit obligations
Discount rate (as a percent)	1.87%	2.29%
Rate of increase in salary levels (as a percent)	1.67%	2.38%
Expected long-term rate of return on assets (as a percent)	1.89%	1.59%