ADVANCES TO SUPPLIERS (Details) - USD ($)	Mar. 31, 2017	Jun. 30, 2016
Advance To Suppliers [Line Items]
Freight fees	$ 1,316,562	$ 2,192,910
Others	8,710	0
Total	$ 1,325,272	$ 2,192,910

This represents the advance amount paid to freight fee investment advisory services.

No definition available.

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