EARNINGS PER SHARE ("EPS") (Schedule of Earnings Per Share Reconciliation) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 28, 2015	Dec. 27, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 28, 2015	Mar. 29, 2014	Mar. 30, 2013
Basic EPS
Net income	$ (2,929)	$ 15,988	$ 7,487	$ (3,649)	$ 10,184	$ 16,290	$ 16,548	$ (7,874)	$ 16,897	$ 35,148	$ 38,800
Basic weighted average shares (in shares)									51,533,000	51,611,000	51,349,000
Basic income per share (in dollars per share)	$ (0.06)	$ 0.31	$ 0.15	$ (0.07)	$ 0.20	$ 0.31	$ 0.32	$ (0.15)	$ 0.33	$ 0.68	$ 0.76
Diluted EPS
Net income	$ (2,929)	$ 15,988	$ 7,487	$ (3,649)	$ 10,184	$ 16,290	$ 16,548	$ (7,874)	$ 16,897	$ 35,148	$ 38,800
Basic weighted average shares (in shares)									51,533,000	51,611,000	51,349,000
Net effect of common stock equivalents (in shares)									556,000	766,000	910,000
Diluted weighted average shares (in shares)									52,089,000	52,377,000	52,259,000
Diluted income per share (in dollars per share)	$ (0.06)	$ 0.31	$ 0.14	$ (0.07)	$ 0.19	$ 0.31	$ 0.32	$ (0.15)	$ 0.32	$ 0.67	$ 0.74
Stock options excluded from computation of weighted average shares outstanding (in shares)									1,600,000	1,100,000	500,000