v3.21.2

Segment Reporting (Details) - Schedule of segment reporting total assets - USD ($)	Sep. 30, 2021	Jun. 30, 2021
Segment Reporting, Asset Reconciling Item [Line Items]
Total Assets	$ 53,689,153	$ 52,803,117
Shipping Agency and Management Services [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total Assets	45,324,671	47,347,418
Freight Logistic Services [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total Assets	8,363,167	5,453,848
Container Trucking Services [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total Assets	$ 1,315	$ 1,851

X

- Definition

Amount of segment reporting of total assets.

+ References

No definition available.

+ Details

Name:	sino_SegmentReportingTotalAssets
Namespace Prefix:	sino_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Details

Name:	sino_ServiceAxis=sino_ShippingAgencyServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	sino_ServiceAxis=sino_FreightLogisticServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	sino_ServiceAxis=sino_ContainerTruckingServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: