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Share-based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 03, 2021 | Sep. 27, 2020 | Mar. 29, 2020 | Oct. 03, 2021 | Sep. 27, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Compensation expense | $ 500 | $ 400 |  | $ 1,400 | $ 1,300
Expected dividend yield |  |  | 0.00% |  |
Shares withheld for tax requirements |  |  |  | 70,228 |
Tax withholding payments for share-based compensation |  |  |  | $ 1,046 | $ 97
Common Stock [Member] |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Closing stock price per share | $ 24.11 |  |  | $ 24.11 |
Share Option Awards [Member] |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Maximum expiration period of share based payment awards granted |  |  |  | 10 years |
Granted, shares |  |  |  | 0 | 257,000
Weighted-average grant-date fair value per share |  |  |  |  | $ 1.25
Unrecognized compensation expense | $ 300 |  |  | $ 300 |
Weighted-average period of recognition |  |  |  | 1 year 9 months 18 days |
Share Option Awards [Member] | Share-based Compensation Award, Tranche One [Member] |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Vesting rights (as percentage) |  |  |  | 25.00% |
Performance Shares [Member] | Share-based Compensation Award, Tranche One [Member] |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Vesting rights (as percentage) |  |  |  | 25.00% |
Performance Shares [Member] | Share-based Compensation Award, Tranche One [Member] | Non-Employee Directors [Member] |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Vesting rights (as percentage) |  |  |  | 100.00% |
Nonvested Share Awards [Member] |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Weighted-average period of recognition |  |  |  | 2 years 6 months |
Fair value of nonvested share awards |  |  |  | $ 5,300 | $ 400
Issuance of nonvested share awards, Shares |  |  |  | 248,550 | 321,600
Weighted-average grant-date fair value per share, granted |  |  |  | $ 15.61 | $ 1.69
Unrecognized compensation expenses | 3,700 |  |  | $ 3,700 |
Nonvested Share Unit Awards [Member] |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Weighted-average period of recognition |  |  |  | 8 months 12 days |
Fair value of nonvested share awards |  |  |  | $ 1,200 | $ 200
Issuance of nonvested share awards, Shares |  |  |  | 2,614 |
Weighted-average grant-date fair value per share, granted |  |  |  | $ 28.69 |
Unrecognized compensation expenses | $ 100 |  |  | $ 100 |
2019 Equity Incentive Plan [Member] |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Shares available for future grant | 1,859,257 |  |  | 1,859,257 |

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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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