Accounts Receivable, Net (Details Textual) - USD ($)	12 Months Ended
Jun. 30, 2017	Jun. 30, 2016
Accounts Receivable, Net (Textual)
Provision for recovery of doubtful accounts receivable	$ (18,912)	$ 132,915

Amount of expense (recoveries) related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

No definition available.

Name:	sino_ProvisionForRecoveryOfDoubtfulAccounts
Namespace Prefix:	sino_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration