Other Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 30, 2017	Dec. 31, 2016	Apr. 01, 2017
Other Assets, Noncurrent Disclosure [Abstract]
Demo equipment depreciation expense	$ 600	$ 100	$ 800	$ 300
Consignment and demo equipment, net	8,636		8,636		$ 11,011
Long term deposits	2,620		2,620		2,872
Restricted Cash, Noncurrent	1,087		1,087		1,090
Deferred Income Taxes and Other Assets, Noncurrent	827		827		890
Accounts Receivable, Net	75,739		75,739		40,983
Other	4,169		4,169		3,958
Other assets	$ 17,339		$ 17,339		$ 19,821