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Cash and cash equivalents (Details)	Mar. 31, 2023 USD ($)	Mar. 31, 2023 CNY (¥)	Mar. 31, 2022 USD ($)	Mar. 31, 2022 CNY (¥)
Cash and cash equivalents
Cash on hand	$ 396		$ 429
Bank balances	20,998,172		23,833,460
Other monetary funds	218		236
Total	$ 20,998,786	¥ 19,791,079	$ 23,834,125	¥ 21,206,372

X

- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section 45
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(1))
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Period Type:	instant

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- References

No definition available.

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
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- Definition

A bank's noninterest bearing demand deposits in other banks (such as correspondents).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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X

- Definition

Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates, classified as other. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

No definition available.

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