Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001626199-23-000090-index-headers.html | 2023-08-14 16:22:30 | |
| 0001626199-23-000090-index.html | 2023-08-14 16:22:30 | |
| 0001626199-23-000090.txt | 2023-08-14 16:22:30 | |
 0001626199-23-000090-xbrl.zip | 17024 | 2023-08-14 16:22:30 |
 alpineislogosma11a.jpg | 15826 | 2023-08-14 16:22:30 |
| alpn-20230814.htm | 31470 | 2023-08-14 16:22:30 |
| alpn-20230814.xsd | 1953 | 2023-08-14 16:22:30 |
| alpn-20230814_htm.xml | 2827 | 2023-08-14 16:22:30 |
| alpn-20230814_lab.xml | 24851 | 2023-08-14 16:22:30 |
| alpn-20230814_pre.xml | 13084 | 2023-08-14 16:22:30 |
| ex991_20230630x10-q.htm | 76577 | 2023-08-14 16:22:30 |
| FilingSummary.xml | 1672 | 2023-08-14 16:22:30 |
| Financial_Report.xlsx | 5719 | 2023-08-14 16:22:30 |
| MetaLinks.json | 17846 | 2023-08-14 16:22:30 |
| R1.htm | 39621 | 2023-08-14 16:22:30 |
| report.css | 2767 | 2023-08-14 16:22:30 |
| Show.js | 1085 | 2023-08-14 16:22:30 |