DISCONTINUED OPERATIONS (Details) - Schedule of Disposal Groups, Including Discontinued Operations, Income Statement (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jun. 30, 2011
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement [Abstract]
Operating income, and other	$ (91)
Earnings before income taxes	91
Earnings from discontinued operations, net of tax	$ 91

Amount of gain (loss), before tax expense or benefit and not previously recognized, resulting from the sale of a business component.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 45

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

+ Details

Name:	us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component.

+ References

+ Details

Name:	us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Disposal Group Including Discontinued Operation Operating Expense during the period.

+ References

No definition available.

+ Details

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

- Details

Name:	zigo_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementAbstract
Namespace Prefix:	zigo_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration