Organizations and reorganizations (Details 1) |
6 Months Ended | 12 Months Ended | ||||||
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Sep. 30, 2025
USD ($)
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Sep. 30, 2025
CNY (¥)
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Sep. 30, 2024
CNY (¥)
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Mar. 31, 2025
USD ($)
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Mar. 31, 2025
CNY (¥)
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Mar. 31, 2024
CNY (¥)
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Sep. 30, 2025
CNY (¥)
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Mar. 31, 2025
CNY (¥)
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| Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | ||||||||
| Total assets | $ 3,762,235 | $ 4,589,536 | ¥ 33,053,253 | ¥ 26,783,360 | ¥ 32,672,916 | |||
| Total liabilities | 6,710,722 | 8,103,986 | 65,452,439 | 47,773,633 | 57,692,272 | |||
| Net cash provided by operating activities | (591,694) | ¥ (4,212,269) | ¥ 14,739,186 | 925,367 | ¥ 6,587,712 | 16,559,104 | ||
| Net cash used in investing activities | 2,118,438 | 15,081,162 | (16,166,670) | (2,037,964) | (14,508,262) | (488,536) | ||
| Net cash used in financing activities | (1,412,901) | (10,058,444) | (6,370,263) | (1,002,502) | (7,136,808) | (599,851) | ||
| Variable Interest Entity And Subsidiaries [Member] | ||||||||
| Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | ||||||||
| Total assets | 3,762,235 | 4,589,536 | 33,053,253 | 26,783,360 | 32,672,916 | |||
| Total liabilities | 6,710,722 | 8,103,986 | 65,452,439 | ¥ 47,773,633 | ¥ 57,692,272 | |||
| Net revenues | 7,092,302 | 50,490,097 | 42,299,076 | 15,449,939 | 109,988,114 | 41,606,354 | ||
| Net loss | 511,179 | 3,639,083 | (1,239,401) | 1,030,317 | 7,334,830 | (11,565,768) | ||
| Net cash provided by operating activities | (591,694) | (4,212,269) | 14,739,186 | 925,367 | 6,587,712 | 16,559,104 | ||
| Net cash used in investing activities | 2,118,438 | 15,081,162 | (16,166,670) | (2,037,964) | (14,508,262) | (488,536) | ||
| Net cash used in financing activities | $ (1,412,901) | ¥ (10,058,444) | ¥ (6,370,263) | $ (1,002,502) | ¥ (7,136,808) | ¥ (599,851) | ||
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- Definition Amount of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of cash inflow (outflow) from financing activity, including, but not limited to, discontinued operation. Financing activity includes, but is not limited to, obtaining resource from owner and providing return on, and return of, their investment; borrowing money and repaying amount borrowed, or settling obligation; and obtaining and paying for other resource obtained from creditor on long-term credit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash inflow (outflow) from investing activity, including, but not limited to, discontinued operation. Investing activity includes, but is not limited to, making and collecting loan, acquiring and disposing of debt and equity instruments, property, plant, and equipment, and other productive assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash inflow (outflow) from operating activity, including, but not limited to, discontinued operation. Operating activity includes, but is not limited to, transaction, adjustment, and change in value not defined as investing or financing activity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of income (loss) from operations derived by the reporting entity during the period from the Variable Interest Entity (VIE). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of income between the reporting entity and the Variable Interest Entity (VIE). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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