Organization and Other Matters - Additional Information (Detail) |
6 Months Ended |
|---|---|
|
Jun. 29, 2025
shop
joint_venture
| |
| Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | |
| Number of shops Potbelly Corporation owns or operates | 340 |
| Number of shops franchisees operate | 107 |
| Number of joint ventures | joint_venture | 6 |
| Minimum | |
| Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | |
| Ownership interest rate | 51.00% |
| Maximum | |
| Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | |
| Ownership interest rate | 80.00% |