Income Taxes - Summary of Movement of Valuation Allowance (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
Feb. 28, 2022 CNY (¥)	Feb. 28, 2022 USD ($)	Feb. 28, 2021 CNY (¥)
Valuation Allowance [Abstract]
Balance at the beginning of the year	¥ (6,301)	$ (999)	¥ (3,064)
Provided	(23,079)	(3,658)	(3,733)
Written off	2,012	319	496
Balance at the end of the year	¥ (27,368)	$ (4,338)	¥ (6,301)

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319

Name:	us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant