v3.26.1
Segment Reporting - Revenue and Assets (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jul. 01, 2025
Jun. 30, 2026
Jul. 01, 2025
Dec. 30, 2025
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]          
Total revenue $ 127,037 $ 126,433 $ 250,823 $ 250,227  
Less:          
Other restaurant operating costs 25,372 24,414 51,084 50,070  
General and administrative 13,857 12,404 26,371 25,214  
Depreciation and amortization 5,900 7,139 11,881 14,229  
Pre-opening 0 69 0 220  
Restaurant impairments, closure costs and asset disposals 5,527 13,653 8,261 14,944  
Total segment expenses 128,577 141,211 253,175 271,392  
Loss from operations (1,540) (14,778) (2,352) (21,165)  
Interest expense, net 2,391 2,753 4,989 5,400  
Loss before income taxes (3,931) (17,531) (7,341) (26,565)  
Assets 235,774   235,774   $ 261,671
Restaurant revenue          
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]          
Total revenue 124,801 123,781 246,241 245,107  
Less:          
Restaurant operating costs 31,019 32,860 61,912 65,153  
Franchising royalties and fees, and other          
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]          
Total revenue 2,236 2,652 4,582 5,120  
Labor          
Less:          
Restaurant operating costs 36,737 39,279 73,147 78,675  
Occupancy          
Less:          
Restaurant operating costs 10,165 11,393 20,519 22,887  
Reportable Segment          
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]          
Total revenue 127,037 126,433 250,823 250,227  
Less:          
Restaurant operating costs 31,019 32,860 61,912 65,153  
Other restaurant operating costs 25,372 24,414 51,084 50,070  
General and administrative 13,857 12,404 26,371 25,214  
Depreciation and amortization 5,900 7,139 11,881 14,229  
Pre-opening 0 69 0 220  
Restaurant impairments, closure costs and asset disposals 5,527 13,653 8,261 14,944  
Total segment expenses 128,577 141,211 253,175 271,392  
Loss from operations (1,540) (14,778) (2,352) (21,165)  
Interest expense, net 2,391 2,753 4,989 5,400  
Loss before income taxes (3,931) (17,531) (7,341) (26,565)  
Total long-lived assets 208,621 233,678 208,621 233,678  
Assets 235,774 261,671 235,774 261,671  
Reportable Segment | Restaurant revenue          
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]          
Total revenue 124,801 123,781 246,241 245,107  
Reportable Segment | Franchising royalties and fees, and other          
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]          
Total revenue 2,236 2,652 4,582 5,120  
Reportable Segment | Labor          
Less:          
Restaurant operating costs 36,737 39,279 73,147 78,675  
Reportable Segment | Occupancy          
Less:          
Restaurant operating costs $ 10,165 $ 11,393 $ 20,519 $ 22,887