Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-22-018252-index-headers.html | 2022-05-05 16:12:22 | |
| 0001564590-22-018252-index.html | 2022-05-05 16:12:22 | |
| 0001564590-22-018252.txt | 2022-05-05 16:12:22 | |
 0001564590-22-018252-xbrl.zip | 30596 | 2022-05-05 16:12:22 |
| altr-20220505.xsd | 5581 | 2022-05-05 16:12:22 |
| altr-20220505_lab.xml | 18565 | 2022-05-05 16:12:22 |
| altr-20220505_pre.xml | 11029 | 2022-05-05 16:12:22 |
| altr-8k_20220505.htm | 42034 | 2022-05-05 16:12:22 |
| altr-8k_20220505_htm.xml | 3425 | 2022-05-05 16:12:22 |
| altr-ex991_6.htm | 743021 | 2022-05-05 16:12:22 |
| FilingSummary.xml | 1746 | 2022-05-05 16:12:22 |
| Financial_Report.xlsx | 5682 | 2022-05-05 16:12:22 |
| MetaLinks.json | 18470 | 2022-05-05 16:12:22 |
| R1.htm | 38718 | 2022-05-05 16:12:22 |
| report.css | 2767 | 2022-05-05 16:12:22 |
| Show.js | 1084 | 2022-05-05 16:12:22 |