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|---|---|---|
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| 0000950170-23-002830-index.html | 2023-02-15 08:31:46 | |
| 0000950170-23-002830.txt | 2023-02-15 08:31:46 | |
 0000950170-23-002830-xbrl.zip | 2098410 | 2023-02-15 08:31:46 |
| alvr-20221231.htm | 3875250 | 2023-02-15 08:31:46 |
| alvr-20221231.xsd | 67624 | 2023-02-15 08:31:46 |
| alvr-20221231_cal.xml | 68289 | 2023-02-15 08:31:46 |
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| alvr-20221231_htm.xml | 2395441 | 2023-02-15 08:31:46 |
| alvr-20221231_lab.xml | 576127 | 2023-02-15 08:31:46 |
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| alvr-ex31_1.htm | 22041 | 2023-02-15 08:31:46 |
| alvr-ex31_2.htm | 22074 | 2023-02-15 08:31:46 |
| alvr-ex32_1.htm | 13349 | 2023-02-15 08:31:46 |
| alvr-ex32_2.htm | 13386 | 2023-02-15 08:31:46 |
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| Financial_Report.xlsx | 114048 | 2023-02-15 08:31:46 |
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| MetaLinks.json | 843406 | 2023-02-15 08:31:46 |
| R1.htm | 70761 | 2023-02-15 08:31:46 |
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| report.css | 2767 | 2023-02-15 08:31:46 |
| Show.js | 1085 | 2023-02-15 08:31:46 |