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Share-based Compensation - Summary of Share Option Awards (Detail) - USD ($)	6 Months Ended
	Jul. 04, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Shares, Outstanding at January 3, 2021	742,800
Shares, Exercised	(317,675)
Shares, Outstanding at July 4, 2021	425,125
Shares, Exercisable at July 4, 2021	51,882
Shares, Vested and Expected to Vest at July 4, 2021	418,485
Weighted-Average Exercise Price, Outstanding at January 3, 2021	$ 4.62
Weighted-Average Exercise Price, Exercised	5.67
Weighted-Average Exercise Price, Outstanding at July 4, 2021	3.84
Weighted-Average Exercise Price, Exercisable at July 4,2021	7.19
Weighted-Average Exercise Price, Vested and Expected to Vest at July 4, 2021	$ 3.86
Weighted-Average Remaining Contractual Life (In Years), Outstanding at July 4, 2021	7 years 9 months 18 days
Weighted-Average Remaining Contractual Life (In Years), Exercisable at July 4, 2021	6 years 1 month 2 days
Weighted-Average Remaining Contractual Life (In Years), Vested and Expected to Vest at July 4, 2021	7 years 9 months 14 days
Aggregate Intrinsic Value, Outstanding at July 4, 2021	$ 9,361,153
Aggregate Intrinsic Value, Exercisable at July 4, 2021	968,908
Aggregate Intrinsic Value, Vested and Expected to Vest at July 4, 2021	$ 9,207,362

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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