Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000950170-22-014726-index.html | 2022-08-04 16:01:12 | |
| 0000950170-22-014726.txt | 2022-08-04 16:01:12 | |
 0000950170-22-014726-xbrl.zip | 272648 | 2022-08-04 16:01:12 |
| alvr-20220630.htm | 2821277 | 2022-08-04 16:01:12 |
| alvr-20220630.xsd | 42715 | 2022-08-04 16:01:12 |
| alvr-20220630_cal.xml | 40487 | 2022-08-04 16:01:12 |
| alvr-20220630_def.xml | 133288 | 2022-08-04 16:01:12 |
| alvr-20220630_htm.xml | 286361 | 2022-08-04 16:01:12 |
| alvr-20220630_lab.xml | 391857 | 2022-08-04 16:01:12 |
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| alvr-ex31_2.htm | 19461 | 2022-08-04 16:01:12 |
| alvr-ex32_1.htm | 11268 | 2022-08-04 16:01:12 |
| alvr-ex32_2.htm | 11306 | 2022-08-04 16:01:12 |
| FilingSummary.xml | 21541 | 2022-08-04 16:01:12 |
| Financial_Report.xlsx | 54927 | 2022-08-04 16:01:12 |
| MetaLinks.json | 540164 | 2022-08-04 16:01:12 |
| R1.htm | 53937 | 2022-08-04 16:01:12 |
| R10.htm | 14891 | 2022-08-04 16:01:12 |
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| R27.htm | 9273 | 2022-08-04 16:01:12 |
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| R30.htm | 17541 | 2022-08-04 16:01:12 |
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| R8.htm | 12126 | 2022-08-04 16:01:12 |
| R9.htm | 9662 | 2022-08-04 16:01:12 |
| report.css | 2767 | 2022-08-04 16:01:12 |
| Show.js | 1085 | 2022-08-04 16:01:12 |