Quarterly report [Sections 13 or 15(d)]

Summary of Business and Significant Accounting Policies - Consolidated Statement of Operations (Details)

v3.25.3
Summary of Business and Significant Accounting Policies - Consolidated Statement of Operations (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 28, 2025
Jun. 29, 2025
Mar. 30, 2025
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Sep. 28, 2025
Sep. 30, 2024
Dec. 31, 2024
Error Corrections and Prior Period Adjustments Restatement [Line Items]                  
Owned restaurant operating expenses $ 119,901     $ 126,223     $ 378,169 $ 279,633  
Total owned operating expenses 157,313     166,103     501,891 374,104  
General and administrative 13,274     12,814     38,027 30,982  
Pre-opening expenses 698     2,118     3,958 7,548  
Total costs and expenses 188,073     197,621     595,190 454,680  
Operating Income (7,873)     (3,646)     3,518 (3,216)  
Loss before benefit for income taxes (18,356)     (14,325)     (27,082) (27,987)  
Provision (benefit) for income taxes 59,141     (4,856)     60,125 (8,583)  
Net loss (77,497) $ (10,332) $ 622 (9,469) $ (7,505) $ (2,430) (87,207) (19,404)  
Net loss attributable to The ONE Group Hospitality, Inc. (76,740)     (9,304)     (85,869) (18,715)  
Net loss available to common stockholders $ (85,275)     $ (16,429)     $ (110,132) $ (30,378)  
Basic net loss per common share $ (2.75)     $ (0.53)     $ (3.55) $ (0.97)  
Diluted net loss per common share $ (2.75)     $ (0.53)     $ (3.55) $ (0.97)  
Previously Reported                  
Error Corrections and Prior Period Adjustments Restatement [Line Items]                  
Owned restaurant operating expenses       $ 125,634       $ 278,464  
Total owned operating expenses       165,514       372,935  
General and administrative       12,785       30,941  
Pre-opening expenses       2,110       7,528  
Total costs and expenses       196,995       453,450  
Operating Income       (3,020)       (1,986)  
Loss before benefit for income taxes       (13,699)       (26,757)  
Provision (benefit) for income taxes       (4,644)       (8,180)  
Net loss       (9,055)       (18,577)  
Net loss attributable to The ONE Group Hospitality, Inc.       (8,890)       (17,888)  
Net loss available to common stockholders       $ (16,015)       $ (29,551)  
Basic net loss per common share       $ (0.52)       $ (0.95)  
Diluted net loss per common share       $ (0.52)       $ (0.95)  
Adjustment                  
Error Corrections and Prior Period Adjustments Restatement [Line Items]                  
Owned restaurant operating expenses       $ 589       $ 1,169  
Total owned operating expenses       589       1,169  
General and administrative       29       41  
Pre-opening expenses       8       20  
Total costs and expenses       626       1,230  
Operating Income       (626)       (1,230)  
Loss before benefit for income taxes       (626)       (1,230)  
Provision (benefit) for income taxes       (212)       (403)  
Net loss       (414)       (827) $ 1,300
Net loss attributable to The ONE Group Hospitality, Inc.       (414)       (827)  
Net loss available to common stockholders       $ (414)       $ (827)  
Basic net loss per common share       $ (0.01)       $ (0.03)  
Diluted net loss per common share       $ (0.01)       $ (0.03)