Summary of significant accounting policies - Accounts payable (Details)	12 Months Ended
Jun. 30, 2024
Summary of significant accounting policies
Term for payments of accounts payable	30 days

Represents the term for payments of accounts payable.

No definition available.

Name:	btog_TermForPaymentsOfAccountsPayable
Namespace Prefix:	btog_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration