Note 7 - Commitments and Contingencies (Details Textual)	1 Months Ended
Dec. 31, 2015
Purchase Agreement Period (Year)	1 year

This element represents the period of purchase for which the entity is enabled to purchase.

No definition available.

Name:	isr_PurchaseAgreementPeriod
Namespace Prefix:	isr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration