2011 EQUITY INCENTIVE PLAN (Schedule of Unrecognized Stock-Based Compensation Expense) (Details) - USD ($) $ in Thousands		9 Months Ended
		Dec. 28, 2018	Dec. 29, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized expense	[1]	$ 51	$ 16
IEH employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized expense
Non-employee directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized expense		$ 51	$ 16

[1] Unrecognized stock-based compensation expense related to prior years' equity grants of stock options to non-employee directors, that had not vested as of the end of the applicable fiscal year.