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|---|---|---|
 0000950170-24-044046-index-headers.html | 2024-04-12 16:15:24 | |
| 0000950170-24-044046-index.html | 2024-04-12 16:15:24 | |
| 0000950170-24-044046.txt | 2024-04-12 16:15:24 | |
 0000950170-24-044046-xbrl.zip | 641883 | 2024-04-12 16:15:24 |
| atra-20240412.htm | 1658772 | 2024-04-12 16:15:24 |
| atra-20240412.xsd | 35232 | 2024-04-12 16:15:24 |
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| R1.htm | 8959 | 2024-04-12 16:15:24 |
| R2.htm | 210074 | 2024-04-12 16:15:24 |
| report.css | 2767 | 2024-04-12 16:15:24 |
| Show.js | 1085 | 2024-04-12 16:15:24 |