Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-24-037643-index-headers.html | 2024-03-28 08:35:12 | |
| 0000950170-24-037643-index.html | 2024-03-28 08:35:12 | |
| 0000950170-24-037643.txt | 2024-03-28 08:35:12 | |
 0000950170-24-037643-xbrl.zip | 20352 | 2024-03-28 08:35:12 |
| atra-20240328.htm | 42577 | 2024-03-28 08:35:12 |
| atra-20240328.xsd | 26006 | 2024-03-28 08:35:12 |
| atra-20240328_htm.xml | 4892 | 2024-03-28 08:35:12 |
| atra-ex99_1.htm | 279389 | 2024-03-28 08:35:12 |
| FilingSummary.xml | 1661 | 2024-03-28 08:35:12 |
| Financial_Report.xlsx | 5783 | 2024-03-28 08:35:12 |
| MetaLinks.json | 18516 | 2024-03-28 08:35:12 |
| R1.htm | 41251 | 2024-03-28 08:35:12 |
| report.css | 2766 | 2024-03-28 08:35:12 |
| Show.js | 1084 | 2024-03-28 08:35:12 |