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| 0000950170-23-017901-index.html | 2023-05-04 16:21:04 | |
| 0000950170-23-017901.txt | 2023-05-04 16:21:04 | |
 0000950170-23-017901-xbrl.zip | 232366 | 2023-05-04 16:21:04 |
| altr-20230331.htm | 3201785 | 2023-05-04 16:21:04 |
| altr-20230331.xsd | 62666 | 2023-05-04 16:21:04 |
| altr-20230331_cal.xml | 74081 | 2023-05-04 16:21:04 |
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| altr-20230331_htm.xml | 2050428 | 2023-05-04 16:21:04 |
| altr-20230331_lab.xml | 528731 | 2023-05-04 16:21:04 |
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| altr-ex32_1.htm | 12022 | 2023-05-04 16:21:04 |
| FilingSummary.xml | 42921 | 2023-05-04 16:21:04 |
| Financial_Report.xlsx | 88453 | 2023-05-04 16:21:04 |
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| report.css | 2767 | 2023-05-04 16:21:04 |
| Show.js | 1085 | 2023-05-04 16:21:04 |