v3.21.2

Quantitative and qualitative disclosure about market risk - Provision for account receivable, other receivable (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($)
Quantitative and qualitative disclosure about market risk
Provisions for doubtful accounts	$ 39
Balance as of December 31	$ 39

X

- Definition

The amount of allowance for account receivable, other receivables and prepayments, deposit for acquisition of a subsidiary.

+ References

No definition available.

+ Details

Name:	sgoc_AllowanceForAccountReceivableOtherReceivablesAndPrepaymentsDepositForAcquisition
Namespace Prefix:	sgoc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of allowance for account receivable, other receivables and prepayments, deposit for acquisition of a subsidiary, provision.

+ References

No definition available.

+ Details

Name:	sgoc_AllowanceForAccountReceivableOtherReceivablesAndPrepaymentsDepositForAcquisitionProvision
Namespace Prefix:	sgoc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_RisksAndUncertaintiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration