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Subsequent events - Issuance of senior secured convertible notes (Details) - Subsequent Events		1 Months Ended
	Jul. 13, 2025 USD ($) tranche	Jul. 31, 2025 USD ($) tranche
Senior Convertible Note (Series A-1, B-1, and C-1)
Subsequent events
Number of traches issued | tranche	3	3
Aggregate gross proceeds	$ 16,338,506	$ 16,338,506
Series A-1 Note
Subsequent events
Aggregate gross proceeds	10,000,000
Series B-1 Note
Subsequent events
Aggregate gross proceeds	5,000,000
Series C-1 Note
Subsequent events
Aggregate gross proceeds	$ 1,338,506

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- Definition

This information represents for number of traches issued.

+ References

No definition available.

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- Definition

The gross proceeds from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

+ References

No definition available.

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

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