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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Dec. 22, 2017 | Jan. 01, 2021 | Jan. 03, 2020 | Dec. 28, 2018
Increase (decrease) in taxes resulting from: |  |  |  |
Computed provision for taxes based on income at statutory rate percentage | 35.00% | 21.00% | 21.00% | 21.00%
Permanent differences percentage |  | 0.40% | 0.50% | 0.50%
State taxes, net of federal income tax benefit percentage |  | 0.90% | (2.20%) | 0.10%
State tax benefit percentage |  | (16.90%) | 0.70% | (6.70%)
Foreign tax differential percentage |  | (27.90%) | (11.60%) | (11.00%)
Expiration of state net operating tax loss carryforwards percentage |  | 3.20% | 8.00% | 0.00%
Foreign earnings not permanently reinvested, net of the participation exemption percentage |  | (0.10%) | (0.10%) | (14.00%)
Foreign dividend withholding percentage |  |  |  | 4.80%
ASC 718 share based payment adjustment percentage |  | 5.80% |  | (6.50%)
Incentive stock option compensation percentage |  | (59.40%) | (0.40%) | (12.70%)
Non-qualified stock option and restricted stock tax deduction in excess of cumulative book deduction percentage |  | (52.30%) | (12.90%) | (12.70%)
Executive compensation Section 162(m) limitation percentage |  | 43.00% | 4.40% | 0.90%
GILTI inclusion percentage |  | 54.00% | 25.90% | 26.80%
Other percentage |  | (2.50%) | 0.90% | 0.50%
Valuation allowance percentage |  | 59.30% | (42.00%) | 34.20%
Effective tax provision (benefit) percentage |  | 28.50% | (7.80%) | 25.20%
Increase (decrease) in taxes resulting from: |  |  |  |
Computed provision for taxes based on income at statutory rate |  | $ 1,736,000 | $ 2,735,000 | $ 1,394,000
Permanent differences |  | 29,000 | 60,000 | 34,000
State taxes, net of federal income tax benefit |  | 74,000 | (284,000) | 8,000
State tax benefit |  | (1,397,000) | 93,000 | (447,000)
Foreign tax differential |  | (2,304,000) | (1,514,000) | (730,000)
Expiration of state net operating tax loss carryforwards |  | 268,000 | 1,039,000 | 0
Foreign earnings not permanently reinvested, net of the participation exemption |  | (5,000) | (7,000) | (926,000)
Foreign dividend withholding |  |  |  | 317,000
ASC 718 share based payment adjustment |  | 476,000 |  | (434,000)
Incentive stock option compensation |  | (4,907,000) | (55,000) | (842,000)
Non-qualified stock option and restricted stock tax deduction in excess of cumulative book deduction |  | (4,324,000) | (1,679,000) | (842,000)
Executive compensation Section 162(m) limitation |  | 3,552,000 | 569,000 | 60,000
GILTI inclusion |  | 4,461,000 | 3,372,000 | 1,780,000
Other |  | (204,000) | 121,000 | 30,000
Valuation allowance |  | 4,899,000 | (5,472,000) | 2,269,000
Provision (benefit) for income taxes |  | $ 2,354,000 | $ (1,022,000) | $ 1,671,000

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