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Share-based Compensation - Summary of Share Option Awards (Detail)	3 Months Ended
	Apr. 04, 2021 USD ($) $ / shares shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Shares, Outstanding at January 3, 2021 | shares	742,800
Shares, Exercised | shares	(196,200)
Shares, Outstanding at April 4, 2021 | shares	546,600
Shares, Exercisable at April 4, 2021 | shares	167,887
Shares, Vested and Expected to Vest at April 4, 2021 | shares	538,806
Weighted-Average Exercise Price, Outstanding at January 3, 2021 | $ / shares	$ 4.62
Weighted-Average Exercise Price, Exercised | $ / shares	4.98
Weighted-Average Exercise Price, Outstanding at April 4, 2021 | $ / shares	4.49
Weighted-Average Exercise Price, Exercisable at April 4, 2021 | $ / shares	6.98
Weighted-Average Exercise Price, Vested and Expected to Vest at April 4, 2021 | $ / shares	$ 4.52
Weighted-Average Remaining Contractual Life (In Years), Outstanding at April 4, 2021	7 years 9 months 7 days
Weighted-Average Remaining Contractual Life (In Years), Exercisable at April 4, 2021	6 years 7 months 6 days
Weighted-Average Remaining Contractual Life (In Years), Vested and Expected to Vest at April 4, 2021	7 years 9 months
Aggregate Intrinsic Value, Outstanding at April 4, 2021 | $	$ 6,608,776
Aggregate Intrinsic Value, Exercisable at April 4, 2021 | $	1,652,228
Aggregate Intrinsic Value, Vested and Expected to Vest at April 4, 2021 | $	$ 6,501,621

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

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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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