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SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Feb. 28, 2022
SIGNIFICANT ACCOUNTING POLICIES |
Property, Plant and Equipment | ​
​ | ​ | ​
Building |  | 35-64 years
Computer, network equipment and software |  | 3 years
Vehicles |  | 4-5 years
Office equipment and furniture |  | 3-5 years
Leasehold improvement |  | Shorter of the lease term or estimated useful lives
Schedule of Acquired Finite-Lived Intangible Assets by Major Class | ​
​ | ​ | ​
Trade name and domain names |  | 1‑10 years
Copyrights and teaching materials |  | 3‑10 years
User base and customer relationships |  | 3‑7 years
Technology |  | 4‑6 years
Partnership agreements and school cooperation agreements |  | 4‑6 years
Licenses |  | 2‑9 years
Others |  | 1‑7 years
Disaggregation of Revenue | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the year ended | ​ | For the year ended | ​ | For the year ended
​ | ​ | February 29, | ​ | February 28, | ​ | February 28,
​ |  | 2020 |  | 2021 |  | 2022
Disaggregation of net revenues |  | ​ |  |  | ​ |  |  | ​ |
-Small class learning services, personalized premium services and others | ​ | $ | 2,655,323 | ​ | $ | 3,221,161 | ​ | $ | 3,054,731
-Online education services through www.xueersi.com | ​ |  | 617,985 | ​ |  | 1,274,594 | ​ |  | 1,336,176
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | $ | 3,273,308 | ​ | $ | 4,495,755 | ​ | $ | 4,390,907

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 + Details
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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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- Definition Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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