INCOME TAXES (Narrative) (Details) (USD $)	12 Months Ended
	Mar. 28, 2015	Mar. 29, 2014	Mar. 30, 2013	Mar. 31, 2012
Income Taxes [Line Items]
Foregin source income	$ 48,430,000	$ 43,260,000	$ 32,537,000
Valuation allowance	8,524,000	2,400,000	0
Tax credit carry-forward, net	8,678,000	2,660,000
Undistributed foreign earnings of subsidiaries	300,200,000
U.S. federal statutory income tax rate	35.00%	35.00%	35.00%
Unrecognized tax benefits	7,070,000	5,604,000	6,930,000	6,885,000
Unrecognized tax benefits that will impact effective tax rate	2,000,000	5,600,000	6,700,000
Unrecognized tax benefits, increases from closure of statute of limitations	1,500,000
Unrecognized tax positions possible change in the next twelve months	900,000
Accrued interest and penalties	700,000	800,000
Accrued interest on income tax benefit	300,000	0	100,000
Domestic Tax Authority [Member]
Income Taxes [Line Items]
Valuation allowance	12,900,000
Operating loss carry-forwards	11,700,000
Tax credit carry-forward, net	6,400,000
Domestic Tax Authority [Member] | Excess Stock Based Compensation
Income Taxes [Line Items]
Operating loss carry-forwards	1,500,000
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Operating loss carry-forwards	23,600,000
Tax credit carry-forward, net	4,000,000
State and Local Jurisdiction [Member] | Excess Stock Based Compensation
Income Taxes [Line Items]
Operating loss carry-forwards	4,000,000
Foreign Tax Authority [Member]
Income Taxes [Line Items]
Operating loss carry-forwards	$ 6,600,000
Switzerland
Income Taxes [Line Items]
Tax holiday term	10 years