Other Current Liabilities (Details Textual)	6 Months Ended
Jul. 03, 2015
Other Liabilities, Current [Line Items]
Percentage Of Other Current Liabilities	5.00%

Represent the percentage of total other current liabilities.

No definition available.

Name:	staa_PercentageOfOtherCurrentLiabilities
Namespace Prefix:	staa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration