MARKETABLE SECURITIES (Details)	Jun. 30, 2013	Jun. 30, 2012
Investments, Debt and Equity Securities [Abstract]
Number of Held To Maturity or Available For Sale Securities	0	0
Number of Securities In Continuous Unrealized Loss Position	0

Number of securities in continuous unrealized loss position.

No definition available.

Name:	zigo_NumberOfSecuritiesInContinuousUnrealizedLossPosition
Namespace Prefix:	zigo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant