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ORDINARY SHARES PURCHASE WARRANTS ISSUED TO INVESTORS (Tables) | 12 Months Ended
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Jun. 30, 2025
ORDINARY SHARES PURCHASE WARRANTS ISSUED TO INVESTORS |
Summary of fair value measurement inputs under black-scholes model | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | June 30, | ​
Input |  | 2025 |  | 2024 | ​
Number of warrants* | ​ |  | 47,964 | ​ | ​ | 47,964 | ​
Share price* | ​ | $ | 2.52 | ​ | $ | 1.44 | ​
Risk-free interest rate | ​ |  | 3.85 | % |  | 4.62 | %
Volatility | ​ |  | 95 | % |  | 105 | %
Exercise price* | ​ | $ | 112.32 | ​ | $ | 112.32 | ​
Warrant life | ​ |  | 1.96years | ​ |  | 2.46 years | ​
* | Retrospectively restated for the 1-for-18 reverse stock split on May 1, 2024.
Summary of liabilities measured at fair value on recurring basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Quoted Prices In |  | Significant Other |  | Significant Other
​ | ​ | June 30, | ​ | Active Markets | ​ | Observable Inputs | ​ | Unobservable Inputs
Description | ​ | 2024 | ​ | (Level 1) | ​ | (Level 2) | ​ | (Level 3)
Liabilities: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Warrant liability - non-current | ​ | $ | 959 | ​ | $ | — | ​ | $ | — | ​ | $ | 959
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  |  | ​ |  | Quoted Prices In |  | Significant Other |  | Significant Other
​ |  | June 30, |  | Active Markets |  | Observable Inputs |  | Unobservable Inputs
Description |  | 2025 |  | (Level 1) |  | (Level 2) |  | (Level 3)
Liabilities: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Warrant liability - non-current | ​ | $ | 96 | ​ | $ | — | ​ | $ | — | ​ | $ | 96
Summary of company warrants activities and status of warrants | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted |  | Average
​ | ​ | ​ | ​ | Average | ​ | Remaining
​ | ​ | ​ | ​ | Exercise Price | ​ | Period
Warrants |  | Warrants* |  | Per Share* |  | (Years)
Outstanding as of June 30, 2023 |  | 1,045,368 | ​ | $ | 18.90 | ​ | 4.40
Issued |  | — | ​ | ​ | — | ​ | —
Redeemed |  | (997,404) | ​ | ​ | 14.40 | ​ | —
Forfeited | ​ | — | ​ | ​ | — | ​ | —
Exercised |  | — | ​ | ​ | — | ​ | —
Expired |  | — | ​ | ​ | — | ​ | —
Outstanding as of June 30, 2024 |  | 47,964 | ​ | $ | 112.32 | ​ | 2.96
Issued |  | — | ​ | ​ | — | ​ | —
Redeemed |  | — | ​ | ​ | — | ​ | —
Forfeited |  | — | ​ | ​ | — | ​ | —
Exercised |  | — | ​ | ​ | — | ​ | —
Expired | ​ | — | ​ | ​ | — | ​ | —
Outstanding as of June 30, 2025 |  | 47,964 | ​ | ​ | 112.32 | ​ | 1.96
* | Retrospectively restated for the 1-for-18 reverse stock split on May 1, 2024.

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 103 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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- Definition Tabular disclosure of liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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