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v3.25.3

Other receivables, net - Movements of allowance for credit losses (Details) - USD ($) | 12 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023
Movements of allowance for credit losses |  |  |
Beginning balance | $ 2,972,289 | $ 2,582,761 |
Addition | 13,875 | 389,528 | $ 2,582,761
Write-off | (2,582,761) | 0 | 0
Ending balance | $ 403,403 | $ 2,972,289 | $ 2,582,761

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | btog_OtherReceivableAllowanceForCreditLossRollForward
Namespace Prefix: | btog_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of direct write-downs of other receivable charged against the allowance. + References No definition available. + Details
Name: | btog_OtherReceivableAllowanceForCreditLossWriteoff
Namespace Prefix: | btog_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of expense (reversal of expense) for expected credit loss on other receivable. + References No definition available. + Details
Name: | btog_OtherReceivableCreditLossExpenseReversal
Namespace Prefix: | btog_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of allowance for credit loss on receivable, classified as other and current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(a)(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_AllowanceForDoubtfulOtherReceivablesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant