Share-based compensation - Unrecognized Share-based Compensation Expense (Details)	6 Months Ended
Jun. 30, 2026 USD ($)
Share-Based Payment Arrangement [Abstract]
Unrecognized employee share-based compensation expense	$ 1,218,325
Unrecognized employee share-based compensation expense related to unvested awards, weighted-average period for recognition	2 years 7 months 24 days

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration