PROPERTY, PLANT AND EQUIPMENT, NET (Details Narrative) - CNY (¥)	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Property, Plant, and Equipment [Abstract]
Depreciation expense	¥ 5,500,000	¥ 5,600,000	¥ 5,700,000
Impairment for property, plant and equipment	¥ 0	¥ 9,000,000.0

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Name:	us-gaap_Depreciation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration