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Geographic and Product Data (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 03, 2015	Apr. 04, 2014
Product Information [Line Items]
Net sales	$ 18,858us-gaap_SalesRevenueNet	$ 20,178us-gaap_SalesRevenueNet
Implantable Collamer Lenses [Member]
Product Information [Line Items]
Net sales	12,255us-gaap_SalesRevenueNet / us-gaap_ProductOrServiceAxis = staa_ImplantableCollamerLensesMember	12,241us-gaap_SalesRevenueNet / us-gaap_ProductOrServiceAxis = staa_ImplantableCollamerLensesMember
Intraocular Lenses [Member]
Product Information [Line Items]
Net sales	5,358us-gaap_SalesRevenueNet / us-gaap_ProductOrServiceAxis = staa_IntraocularLensesMember	6,613us-gaap_SalesRevenueNet / us-gaap_ProductOrServiceAxis = staa_IntraocularLensesMember
Core products [Member]
Product Information [Line Items]
Net sales	17,613us-gaap_SalesRevenueNet / us-gaap_ProductOrServiceAxis = staa_CoreProductsMember	18,854us-gaap_SalesRevenueNet / us-gaap_ProductOrServiceAxis = staa_CoreProductsMember
Other surgical products [Member]
Product Information [Line Items]
Net sales	$ 1,245us-gaap_SalesRevenueNet / us-gaap_ProductOrServiceAxis = staa_OtherSurgicalProductsMember	$ 1,324us-gaap_SalesRevenueNet / us-gaap_ProductOrServiceAxis = staa_OtherSurgicalProductsMember

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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