Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Sep. 30, 2012
Tax Benefit To Correct Error In Deferred Tax Asset	$ 398
Additional Liability for Changes In Tax Positions	$ 190

Amount of recognized additional liability for changes in tax positions.

No definition available.

Name:	zigo_AdditionalLiabilityForChangesInTaxPositions
Namespace Prefix:	zigo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration