Related Party Transactions - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 26, 2020 |
Sep. 28, 2019 |
Sep. 26, 2020 |
Sep. 28, 2019 |
|
| Related Party Transaction [Line Items] | ||||
| Related party expenses | $ 130 | $ 140 | $ 451 | $ 396 |
| Industrial Warehouse and Office Facility Lease Agreement - Manns | Affiliated Entity | ||||
| Related Party Transaction [Line Items] | ||||
| Related party expenses | $ 88 | $ 87 | $ 263 | $ 262 |