Consolidated Statement of Shareholders Equity (unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 01, 2018	Sep. 02, 2017	Sep. 01, 2018	Sep. 02, 2017
Statement of Stockholders' Equity [Abstract]
Tax expense on marketable securities	$ (11)	$ 17	$ (9)	$ 50
Tax benefit on foreign currency hedge	17	0	109	0
Unrealized gain on marketable securities, net of tax expense	$ (42)	$ 30	$ (32)	$ 92