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Income Taxes (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Dec. 30, 2016 | Jan. 01, 2016 | Jan. 02, 2015
Income Taxes [Line Items] |  |  |
Income Tax Expense (Benefit) | $ (315,000) | $ 928,000 | $ (253,000)
Operating Loss Carryforwards | 136,100,000 |  |
Taxes Payable | 367,000 | 380,000 |
Operating Loss Carryforwards, Valuation Allowance | 125,000 | 3,020,000 | 394,000
Deferred Tax Liabilities, Net | $ 473,000 |  |
Operating Loss Carryforwards, Limitations on Use | The California net operating loss carryforwards expire in varying amounts between 2017 and 2036 and, approximately $9.1 million of those net operating loss carryforwards, will expire over the next two years. |  |
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries | $ 881,000 |  |
Operating Loss Carry Forwards Expiration Term | expire in varying amounts between 2020 and 2036. |  |
Increase Decrease In Foreign Deferred Tax Liabilities | $ 617,000 | 172,000 | $ 1,039,000
STAAR Surgical AG [Member] |  |  |
Income Taxes [Line Items] |  |  |
Deferred Tax Assets, Net | 407,000 | 312,000 |
STAAR Japan, Inc. [Member] |  |  |
Income Taxes [Line Items] |  |  |
Deferred Tax Assets, Net | 307,000 |  |
Deferred Tax Liabilities, Net | 145,000 | 145,000 |
Defined Benefit Plan Switzerland [Member] |  |  |
Income Taxes [Line Items] |  |  |
Deferred Tax Liabilities, Net |  | 1,686,000 |
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries |  | 1,627,000 |
Japan [Member] |  |  |
Income Taxes [Line Items] |  |  |
Deferred Tax Assets, Net | 584,000 | $ 698,000 |
California [Member] |  |  |
Income Taxes [Line Items] |  |  |
Operating Loss Carryforwards | $ 32,100,000 |  |

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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319 + Details
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