Accrued Liabilities (Detail) - USD ($) $ in Thousands |
Feb. 29, 2020 |
Feb. 28, 2019 |
Feb. 28, 2018 |
|---|---|---|---|
| Schedule of Accrued Liabilities [Line Items] | |||
| Accrued compensation and benefits | $ 238 | $ 296 | |
| Accrued property taxes | 56 | ||
| Accrued warranty | 51 | 37 | $ 127 |
| Accrued other | 154 | 49 | |
| Accrued Customer Deposit and Accrued Liabilities Current, Total | $ 499 | $ 382 |