Balance Sheet Components - Property, Plant and Equipment (Details) - USD ($) $ in Thousands |
Feb. 28, 2026 |
Aug. 31, 2025 |
|---|---|---|
| Property Plant And Equipment [Line Items] | ||
| Total property, plant and equipment | $ 42,527 | $ 44,261 |
| Less: Accumulated depreciation and amortization | (40,174) | (41,548) |
| Property, plant and equipment, net | 2,353 | 2,713 |
| Buildings and improvements | ||
| Property Plant And Equipment [Line Items] | ||
| Total property, plant and equipment | 13,744 | 14,010 |
| Machinery and equipment | ||
| Property Plant And Equipment [Line Items] | ||
| Total property, plant and equipment | 26,359 | 27,735 |
| Leasehold improvements | ||
| Property Plant And Equipment [Line Items] | ||
| Total property, plant and equipment | 160 | 163 |
| Other equipment | ||
| Property Plant And Equipment [Line Items] | ||
| Total property, plant and equipment | 2,264 | 2,339 |
| Construction in progress | ||
| Property Plant And Equipment [Line Items] | ||
| Total property, plant and equipment | $ 0 | $ 14 |