Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-25-006992-index-headers.html | 2025-01-21 07:36:00 | |
| 0000950170-25-006992-index.html | 2025-01-21 07:36:00 | |
| 0000950170-25-006992.txt | 2025-01-21 07:36:00 | |
 0000950170-25-006992-xbrl.zip | 11346 | 2025-01-21 07:36:00 |
| atra-20250121.htm | 45850 | 2025-01-21 07:36:00 |
| atra-20250121.xsd | 24862 | 2025-01-21 07:36:00 |
| atra-20250121_htm.xml | 4728 | 2025-01-21 07:36:00 |
| atra-ex99_1.htm | 17235 | 2025-01-21 07:36:00 |
| FilingSummary.xml | 1661 | 2025-01-21 07:36:00 |
| Financial_Report.xlsx | 5745 | 2025-01-21 07:36:00 |
| MetaLinks.json | 17958 | 2025-01-21 07:36:00 |
| R1.htm | 39653 | 2025-01-21 07:36:00 |
| report.css | 2766 | 2025-01-21 07:36:00 |
| Show.js | 1084 | 2025-01-21 07:36:00 |