Leases - Summary of Operating Lease Right of Use Assets and Operating Lease Liabilities Relating to Operating Leases (Details) - USD ($) $ in Thousands |
Mar. 29, 2020 |
Dec. 29, 2019 |
|---|---|---|
| Right of use assets | $ 722 | $ 860 |
| Corporate Offices and For Certain Restaurant Properties [Member] | ||
| Right of use assets | 3,889 | 4,076 |
| Lease liabilities | $ 4,059 | $ 4,206 |