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| 0001494650-20-000020.txt | 2020-03-05 06:32:44 | |
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| auditorconsent10-kex231.htm | 4792 | 2020-03-05 06:32:44 |
| descriptionofsecuritie.htm | 46397 | 2020-03-05 06:32:44 |
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| Financial_Report.xlsx | 81437 | 2020-03-05 06:32:44 |
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| optn-20191231.htm | 2194423 | 2020-03-05 06:32:44 |
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| optn-20191231_htm.xml | 1018904 | 2020-03-05 06:32:44 |
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| report.css | 2767 | 2020-03-05 06:32:44 |
| Show.js | 1085 | 2020-03-05 06:32:44 |