Leases (Details)	0 Months Ended
Sep. 19, 2013
Shanghai Office [Member]
Leases [Line Items]
Office space lease agreement term	2 years
Tampa [member]
Leases [Line Items]
Office space lease agreement term	5 years

Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	ish_LesseeLeasingArrangementsOperatingLeasesTermOfContract
Namespace Prefix:	ish_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration