Promissory Note	6 Months Ended
Dec. 31, 2024
Promissory Note [Abstract]
Promissory note	Note 10 — Promissory note On September 29, 2023, Estrella issued an unsecured promissory note to Hongbing Zhang, in the aggregate principal amount of $300,000 (the “Unsecured Note”). Interest began accruing on September 29, 2023 at a rate of 12% per annum until the outstanding amount has been paid in full. The Unsecured Note matures on October 30, 2023 and was paid in full on October 27, 2023.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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