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Income Taxes - Additional Information (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Oct. 01, 2021 | Oct. 02, 2020 | Oct. 01, 2021 | Oct. 02, 2020 | Jan. 01, 2021
Income Taxes [Line Items] |  |  |  |  |
Income tax expense | $ 1,356,000 | $ 1,489,000 | $ 4,751,000 | $ 887,000 |
Valuation allowance, deferred tax asset, increase (decrease), amount, COVID effect |  |  |  | $ 1,215,000 |
Valuation allowance deferred tax asset, increase (decrease), amount, result of lower projected taxable income |  |  | 845,000 |  |
Unrecognized tax benefits related to uncertain tax positions | 0 |  | $ 0 |  |
Reversal of valuation allowance |  | $ 154,000 |  |  |
Percentage of deduction in GILTI |  |  | 50.00% |  |
US |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Deferred Tax Assets, Net | $ 3,026,000 |  | $ 3,026,000 |  | $ 3,870,000
Federal |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Valuation allowance, deferred tax asset, increase (decrease), amount |  |  | 38,377,000 |  | 34,681,000
State |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Valuation allowance, deferred tax asset, increase (decrease), amount |  |  | $ 8,089,000 |  | $ 7,399,000

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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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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