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Note 7 - Concentration of Revenue (Details Textual)	3 Months Ended
	Mar. 31, 2016
Percentage Of Consolidated Revenue	10.00%

X

- Definition

Percentage of Consolidated Revenue

+ References

No definition available.

+ Details

Name:	ins_PercentageOfConsolidatedRevenue
Namespace Prefix:	ins_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration