| Line Item | Jun 30, 2026 | Mar 31, 2026 | Dec 31, 2025 | Sep 30, 2025 | Jun 30, 2025 | Mar 31, 2025 | Dec 31, 2024 | Sep 30, 2024 | Jun 30, 2024 | Mar 31, 2024 | Dec 31, 2023 | Sep 30, 2023 | Jun 30, 2023 | Mar 31, 2023 | Dec 31, 2022 | Sep 30, 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net sales | ||||||||||||||||
| YoY growth | +5.5% | +7.5% | +1.0% | -5.5% | ||||||||||||
| Cost of sales (exclusive of depreciation and amortization shown below) | ||||||||||||||||
| Gross profit | ||||||||||||||||
| % of revenue | 28.5% | 25.4% | 24.1% | 27.2% | ||||||||||||
| Operating expenses: | ||||||||||||||||
| Store operations and other operational expenses | ||||||||||||||||
| Selling, general, and administrative | ||||||||||||||||
| Estimated credit losses | ||||||||||||||||
| Depreciation and amortization | ||||||||||||||||
| Impairment loss on held for sale property and equipment | — | — | — | |||||||||||||
| Total operating expenses | ||||||||||||||||
| % of revenue | 33.9% | 39.1% | 44.2% | 33.2% | ||||||||||||
| Loss from operations | ||||||||||||||||
| % of revenue | -5.4% | -13.7% | -20.1% | -6.0% | ||||||||||||
| Other income (expense): | ||||||||||||||||
| Interest income | ||||||||||||||||
| Total other income | ||||||||||||||||
| Net loss before income taxes | ||||||||||||||||
| Net loss | ||||||||||||||||
| % of revenue | -4.7% | -12.8% | -19.6% | -5.2% | ||||||||||||
| Net loss per share, basic | ||||||||||||||||
| Net loss per share, diluted |