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INCOME TAX - Deferred tax assets, net (Details) | Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Jun. 30, 2024 CNY (¥)
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Deferred tax assets: |  |  |
Allowance for credit losses | ¥ 1,125,857 | $ 154,242 | ¥ 1,652,102
Impairment for inventory | 21,868 | 2,996 | 221,290
Net operating loss carryforwards | 25,574,293 | 3,503,665 | 25,843,951
Subtotal | 26,722,018 | 3,660,903 | 27,717,343
Less: Valuation allowance | (26,442,239) | (3,622,572) | (27,437,564)
Total deferred tax assets, net | 279,779 | 38,331 | 279,779
Deferred tax liabilities: |  |  |
Accelerated amortization of intangible assets | (132,891) | (18,207) | (132,891)
Gain on the previously held equity method investment | (146,888) | (20,124) | (146,888)
Recognition of customer relationship arising from business combinations | 0 | 0 | 0
Total deferred tax liabilities | (279,779) | (38,331) | (279,779)
Deferred tax assets, net | ¥ 0 | $ 0 | ¥ 0

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