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Manufacturing Consolidation Project and Tax Strategy (Details Textual) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 28, 2012
Estimated Cost Of Project | $ 6
Cost Of Project | 2.6
Estimated Cost Of Project Capital | 2.4
Operating Loss Carryforwards | $ 122.5

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- Definition Represents the cost incurred on development project. + References No definition available. + Details
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Balance Type: | debit
Period Type: | duration

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- Definition Represents the estimated cost of project to be undertaken. + References No definition available. + Details
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Namespace Prefix: | staa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Represents the estimated capital cost of project to be undertaken. + References No definition available. + Details
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Namespace Prefix: | staa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The sum of domestic, foreign and state and local operating loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 48 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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