Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-24-095526-index-headers.html | 2024-08-12 17:05:09 | |
| 0000950170-24-095526-index.html | 2024-08-12 17:05:09 | |
| 0000950170-24-095526.txt | 2024-08-12 17:05:09 | |
 0000950170-24-095526-xbrl.zip | 57386 | 2024-08-12 17:05:09 |
| atra-20240810.htm | 55786 | 2024-08-12 17:05:09 |
| atra-20240810.xsd | 26006 | 2024-08-12 17:05:09 |
| atra-20240810_htm.xml | 4892 | 2024-08-12 17:05:09 |
| atra-ex10_1.htm | 127702 | 2024-08-12 17:05:09 |
| atra-ex10_2.htm | 139818 | 2024-08-12 17:05:09 |
| atra-ex99_1.htm | 277250 | 2024-08-12 17:05:09 |
| FilingSummary.xml | 1664 | 2024-08-12 17:05:09 |
| Financial_Report.xlsx | 5783 | 2024-08-12 17:05:09 |
| MetaLinks.json | 18569 | 2024-08-12 17:05:09 |
| R1.htm | 41253 | 2024-08-12 17:05:09 |
| report.css | 2767 | 2024-08-12 17:05:09 |
| Show.js | 1084 | 2024-08-12 17:05:09 |