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 (Loss) [Member]
Balances at Feb. 28, 2021	$ 95,085	$ 234,044	$ (137,974)	$ (985)
Stock-based compensation expense		2,497
Shares issued on net share settlement of equity awards		(1,061)
Exercise of stock options and contributions to employee stock purchase plan		248
Net loss	(1,948)		(1,948)
Foreign currency translation adjustments				906
Balances at May. 31, 2021	95,727	235,728	(139,922)	(79)
Balances at Feb. 28, 2022	75,402	242,747	(165,965)	(1,380)
Balances (ASU 2020-06 [Member]) at Feb. 28, 2022		(67,003)	29,639
Stock-based compensation expense		2,960
Shares issued on net share settlement of equity awards		(425)
Net loss	(12,173)		(12,173)
Foreign currency translation adjustments				189
Balances at May. 31, 2022	$ 28,589	$ 178,279	$ (148,499)	$ (1,191)