Basis of Presentation and Summary of Significant Accounting Policies - Concentration of Credit Risk (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
May 31, 2021 |
May 31, 2020 |
|
| Customer 1 | ||
| Concentration Risk [Line Items] | ||
| Accounts receivable | $ 2,208 | |
| Customer 2 | ||
| Concentration Risk [Line Items] | ||
| Accounts receivable | 117 | |
| Customer 3 | ||
| Concentration Risk [Line Items] | ||
| Accounts receivable | $ 1,551 | |
| Customer Concentration Risk | Revenue [Member] | Total Customers | ||
| Concentration Risk [Line Items] | ||
| Revenue (as a percent) | 23.20% | 42.00% |
| Customer Concentration Risk | Revenue [Member] | Customer 1 | ||
| Concentration Risk [Line Items] | ||
| Revenue (as a percent) | 11.90% | 20.20% |
| Customer Concentration Risk | Revenue [Member] | Customer 2 | ||
| Concentration Risk [Line Items] | ||
| Revenue (as a percent) | 6.20% | 10.90% |
| Customer Concentration Risk | Revenue [Member] | Customer 3 | ||
| Concentration Risk [Line Items] | ||
| Revenue (as a percent) | 5.10% | 10.90% |