v3.21.2

Bank loan (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Bank loan |
Summary of bank loan |
|  | December 31,
|  | 2020 |  | 2019
Current maturities of long-term bank loans |  | $ | 201 |  | $ | 155
Long-term bank borrowings |  |  | 6,040 |  |  | 6,255
|  |  | 6,241 |  |  | 6,410

X
- Definition The tabular disclosure of loans payable to bank. + References No definition available. + Details
Name: | sgoc_LoansPayableToBankTableTextBlock
Namespace Prefix: | sgoc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ShortTermDebtOtherDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration