Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-25-035482-index-headers.html | 2025-03-07 16:05:08 | |
| 0000950170-25-035482-index.html | 2025-03-07 16:05:08 | |
| 0000950170-25-035482.txt | 2025-03-07 16:05:08 | |
 0000950170-25-035482-xbrl.zip | 19577 | 2025-03-07 16:05:08 |
| atra-20250307.htm | 45231 | 2025-03-07 16:05:08 |
| atra-20250307.xsd | 23888 | 2025-03-07 16:05:08 |
| atra-20250307_htm.xml | 4539 | 2025-03-07 16:05:08 |
| atra-ex99_1.htm | 292398 | 2025-03-07 16:05:08 |
| FilingSummary.xml | 1663 | 2025-03-07 16:05:08 |
| Financial_Report.xlsx | 5726 | 2025-03-07 16:05:08 |
| MetaLinks.json | 17431 | 2025-03-07 16:05:08 |
| R1.htm | 38128 | 2025-03-07 16:05:08 |
| report.css | 2766 | 2025-03-07 16:05:08 |
| Show.js | 1084 | 2025-03-07 16:05:08 |