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Income Taxes - Additional Information (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Jan. 01, 2021 | Jan. 03, 2020
Income Taxes [Line Items] |  |  |
Valuation allowance release (recapture) | $ (845,000) | $ 495,000 | $ 3,376,000
Income tax reconciliation of global intangible low-taxed income | $ 800,000 | 21,200,000 | $ 15,100,000
Income tax holiday, description | The Company utilized the high-tax exception to exclude income from foreign jurisdictions with foreign taxes at an effective rate that is higher than 90 percent of the applicable highest U.S. corporate tax rate. |  |
Percentage of deduction in GILTI | 50.00% |  |
Taxes Payable | $ 2,221,000 | 4,650,000 |
Operating Loss Carryforwards | $ 194,710,000 |  |
Operating Loss Carry Forwards Expiration Term | expire in varying amounts between 2022 and 2037 |  |
Operating Loss Carryforwards, Limitations on Use | The California net operating loss carryforwards expire in varying amounts between 2028 and 2040 |  |
Operating losses and research and development credits carryforwards limitations on use | . In 2020, California enacted Assembly Bill 85 which imposed limits on the usability of California state net operating losses and research and development credits in tax years beginning after 2019 and before 2023. |  |
Deferred Tax Assets, Net | $ 3,002,000 | $ 4,722,000 |
Statutory corporate income tax rate | 21.70% | 28.50% | (7.80%)
California |  |  |
Income Taxes [Line Items] |  |  |
Operating Loss Carryforwards | $ 46,109,000 |  |
Swiss | STAAR Surgical AG | 2020 through 2024 |  |  |
Income Taxes [Line Items] |  |  |
Income tax rate, tax holiday, percent | 10.45% |  |
Swiss | STAAR Surgical AG | 2025 through 2029 |  |  |
Income Taxes [Line Items] |  |  |
Income tax rate, tax holiday, percent | 10.90% |  |
JAPAN |  |  |
Income Taxes [Line Items] |  |  |
Deferred Tax Assets, Net | $ 787,000 | $ 1,073,000 |
JAPAN | STAAR Japan |  |  |
Income Taxes [Line Items] |  |  |
Deferred Tax Assets, Net | $ 41,000 | $ 35,000 |
Statutory corporate income tax rate | 25.59% |  |

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