v3.21.2

Advances to Suppliers (Tables) | 12 Months Ended
--- | ---
Jun. 30, 2021
Advances To Suppliers [Abstract] |
Schedule of advances to suppliers – third parties |
|  | June 30, |  |  | June 30, |
|  | 2021 |  |  | 2020 |
Freight fees (1) |  | $ | 880,000 |  |  | $ | 48,875 |

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

X
- Definition A tabular presentation of the information summarizing investments in and advances to majority-owned subsidiaries, other controlled companies, and other affiliates, as prescribed by the SEC. It reflects specified information about ownership, financial results from, and financial position in such entities. Includes the tabular presentations that disaggregate investments in and advances to majority-owned subsidiaries, other controlled companies, and other affiliates. + References No definition available. + Details
Name: | us-gaap_ScheduleOfInvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration