Earnings Per Share - Schedule of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	May 28, 2021	Feb. 26, 2021	Nov. 27, 2020	May 29, 2020	Feb. 28, 2020	Nov. 29, 2019	May 28, 2021	May 29, 2020
Numerator:
Net income (loss)	$ (6,654)	$ 5,844	$ 2,027	$ 825	$ (9,720)	$ 224	$ 1,217	$ (8,671)
Net income attributable to noncontrolling interest	557						557
Net income (loss) attributable to SGH	$ (7,211)			$ 825			$ 660	$ (8,671)
Weighted average shares outstanding:
Basic	24,035			24,066			24,843	23,895
Diluted	24,035			24,431			25,902	23,895
Earnings per share:
Basic	$ (0.30)			$ 0.03			$ 0.03	$ (0.36)
Diluted	$ (0.30)			$ 0.03			$ 0.03	$ (0.36)
Anti-dilutive weighted shares excluded from the computation of diluted earnings per share	233			7,892			7,551	7,236