v3.26.1
Segment Reporting and Entity-Wide Information - Single Segment Net Sales, Net Income and Significant Expenses (Details) - USD ($)
$ in Thousands
 3 Months Ended
May 02, 2026
May 03, 2025
Segment Reporting and Entity-Wide Information [Abstract]    
Net sales $ 658,928 $ 576,767
Cost of sales 382,964 339,736
Depreciation and amortization expenses 11,283 9,357
Pre-opening expenses 6,442 6,656
Interest income, net (4,966) (4,788)
Income tax expense 18,123 13,414
Net income 56,400 47,560
Operating Segment [Member] | Ollie's [Member]    
Segment Reporting and Entity-Wide Information [Abstract]    
Net sales 658,928 576,767
Cost of sales 382,964 339,736
Selling, general, and administrative expenses other 128,084 112,522
Occupancy 38,349 33,430
Advertising expenses [1] 18,848 15,716
Depreciation and amortization expenses [2] 11,283 9,357
Stock-based compensation expense 3,401 3,164
Pre-opening expenses 6,442 6,656
Interest income, net (4,966) (4,788)
Income tax expense 18,123 13,414
Net income 56,400 47,560
Adjustments and Reconciling Items [Member]    
Segment Reporting and Entity-Wide Information [Abstract]    
Net income $ 0 $ 0
[1] Expenses reported in operating expenses excludes advertising expenses recorded in pre-opening.
[2] Expenses reported in operating expenses excludes depreciation and amortization recorded in cost of sales.