CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock and Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income [Member]
Balances at Feb. 29, 2020	$ 137,919	$ 220,825	$ (81,531)	$ (1,375)
Stock-based compensation expense		9,499
Shares issued on net share settlement of equity awards		(1,557)
Exercise of stock options and contributions to employee stock purchase plan		909
Net loss	(47,580)		(47,580)
Foreign currency translation adjustment				262
Balances at Nov. 30, 2020	99,318	229,676	(129,245)	(1,113)
Balances (ASC 326 [Member]) at Nov. 30, 2020			(134)
Balances at Aug. 31, 2020	118,978	226,718	(105,565)	(2,175)
Stock-based compensation expense		3,030
Shares issued on net share settlement of equity awards		(72)
Net loss	(23,680)		(23,680)
Foreign currency translation adjustment				1,062
Balances at Nov. 30, 2020	99,318	229,676	(129,245)	(1,113)
Balances (ASC 326 [Member]) at Nov. 30, 2020			(134)
Balances at Feb. 28, 2021	95,085	234,044	(137,974)	(985)
Stock-based compensation expense		8,586
Shares issued on net share settlement of equity awards		(4,128)
Exercise of stock options and contributions to employee stock purchase plan		900
Net loss	(18,810)		(18,810)
Foreign currency translation adjustment				(1,452)
Balances at Nov. 30, 2021	80,181	239,402	(156,784)	(2,437)
Balances at Aug. 31, 2021	90,312	236,361	(145,347)	(702)
Stock-based compensation expense		3,152
Shares issued on net share settlement of equity awards		(111)
Net loss	(11,437)		(11,437)
Foreign currency translation adjustment				(1,735)
Balances at Nov. 30, 2021	$ 80,181	$ 239,402	$ (156,784)	$ (2,437)