XML 51 R40.htm IDEA: XBRL DOCUMENT
v3.19.1

Prepayments, Deposits, and Other Current Assets - Schedule Of Prepayments, Deposits, and Other Current Assets (Parenthetical) (Details) | Mar. 29, 2019 | Dec. 28, 2018
--- | --- | ---
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract] |  |
Percent of prepayments deposits and other current assets included in other current assets | 5.00% | 5.00%

X
- Definition Percent of prepaid expenses deposits and other assets current. + References No definition available. + Details
Name: | staa_PercentOfPrepaidExpensesDepositsAndOtherAssetsCurrent
Namespace Prefix: | staa_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration