Note 3 - Discontinued Operations - Summary of Discontinued Operations (Details) (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
C4 Technology [Member]
Accounts receivable, allowance for credit losses	$ 0	$ 0

Amount of allowance for credit loss on accounts, notes and loans receivable attributable to disposal group held for sale or disposed of.

No definition available.

Name:	sbet_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableAllowanceForCreditLosses
Namespace Prefix:	sbet_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant