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Share-Based Compensation - Additional Information (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 30, 2023 USD ($) installment shares | Dec. 31, 2022 USD ($) shares | Jan. 01, 2022 USD ($) shares
Share-Based Compensation |  |  |
Compensation expense | $ 4,400 | $ 4,800 | $ 4,100
Vested (in shares) | shares | 0 |  |
2006 Incentive Plan |  |  |
Share-Based Compensation |  |  |
Shares available for grant (in shares) | shares | 661,327 |  |
Granted (in shares) | shares | 0 | 0 | 0
Aggregate intrinsic value | $ 1,541 | $ 4,900 | $ 11,200
1998 ESPP |  |  |
Share-Based Compensation |  |  |
Shares available for grant (in shares) | shares | 211,777 |  |
Number of shares authorized (in shares) | shares | 243,000 |  |
Purchase price as a percentage of fair market value (as a percent) | 85.00% |  |
Offering period under the plan (in years) | 1 year |  |
Shares issued (in shares) | shares | 0 | 0 | 0
Restricted stock |  |  |
Share-Based Compensation |  |  |
Unrecognized compensation cost, net of expected forfeitures | $ 1,400 |  |
Number of vesting installments | installment | 4 |  |
Weighted-average period over which cost is expected to be recognized | 2 years 6 months |  |
Forfeiture rate (as a percent) | 0.90% |  |
Fair value of restricted shares vested | $ 700 | $ 600 | $ 500
Time-Vesting RSUs |  |  |
Share-Based Compensation |  |  |
Unrecognized compensation cost, net of expected forfeitures | $ 3,300 |  |
Weighted-average period over which cost is expected to be recognized | 2 years 7 months 6 days |  |
Forfeiture rate (as a percent) | 0.90% |  |
Fair value of restricted shares vested | $ 1,600 | 1,400 | 1,300
Time-Vesting RSUs | Minimum |  |  |
Share-Based Compensation |  |  |
Number of vesting installments | installment | 4 |  |
Time-Vesting RSUs | Maximum |  |  |
Share-Based Compensation |  |  |
Number of vesting installments | installment | 5 |  |
Options |  |  |
Share-Based Compensation |  |  |
Fair value of options vested |  | $ 100 | $ 200
Unrecognized compensation cost, net of expected forfeitures | $ 0 |  |
PRSU |  |  |
Share-Based Compensation |  |  |
Vesting period (in years) | 2 years |  |
PRSU | Vesting in the first year following performance period | Grants Before 2022 |  |  |
Share-Based Compensation |  |  |
Vesting percentage | 75.00% |  |
PRSU | Vesting in the first year following performance period | 2022 Grants |  |  |
Share-Based Compensation |  |  |
Vesting percentage | 50.00% |  |
PRSU | Vesting on the fourth anniversary of date of grant | Grants Before 2022 |  |  |
Share-Based Compensation |  |  |
Vesting percentage | 25.00% |  |
PRSU | Vesting on the fourth anniversary of date of grant | 2022 Grants |  |  |
Share-Based Compensation |  |  |
Vesting percentage | 25.00% |  |
PRSU | Vesting on the fifth anniversary of date of grant | 2022 Grants |  |  |
Share-Based Compensation |  |  |
Vesting percentage | 25.00% |  |
PRSU | Minimum |  |  |
Share-Based Compensation |  |  |
PRSUs performance measure (as a percent) | 50.00% |  |
PRSU | Maximum |  |  |
Share-Based Compensation |  |  |
PRSUs performance measure (as a percent) | 150.00% |  |
PRSU | 2006 Incentive Plan |  |  |
Share-Based Compensation |  |  |
Achievement percentage (as a percent) |  | 125.00% |

X
- Definition The performance achievement percentage as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. + References No definition available. + Details
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