STOCK-BASED COMPENSATION (Details 3) - Jun. 30, 2015 - $ / shares	Total
Warrants Outstanding	139,032
Warrants Exercisable	139,032
Weighted Average Exercise Price	$ 9.30
Average Remaining Contractual Term	3 years

Weighted average remaining contractual term for warrants outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	sino_WarrantsOutstandingWeightedAverageRemainingContractualTerm
Namespace Prefix:	sino_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration