INVESTMENTS (Details) (USD $)	Jun. 30, 2013
Due within one year	$ 1,856,000
Due one year through three years	7,648,000
Due after three years	294,000
Long term	$ 9,798,000

This item represents the fair value of debt securities excluding mutual funds which are expected to mature after one year and through three years from the balance sheet date and which are categorized neither as held-to-maturity nor trading securities.

No definition available.

Name:	idsy_AvailableForSaleSecuritiesDebtMaturitiesExcludingMutualFundAfterOneThroughThreeYearsFairValue
Namespace Prefix:	idsy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant