Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001379491-18-005513-index-headers.html | 2018-10-17 11:12:10 | |
| 0001379491-18-005513-index.html | 2018-10-17 11:12:10 | |
| 0001379491-18-005513.txt | 2018-10-17 11:12:10 | |
 0001379491-18-005513-xbrl.zip | 150522 | 2018-10-17 11:12:10 |
 BarChart1.png | 28538 | 2018-10-17 11:12:10 |
 BarChart2.png | 27903 | 2018-10-17 11:12:10 |
 BarChart3.png | 28222 | 2018-10-17 11:12:10 |
 BarChart4.png | 28705 | 2018-10-17 11:12:10 |
 BarChart5.png | 29154 | 2018-10-17 11:12:10 |
 BarChart6.png | 28156 | 2018-10-17 11:12:10 |
 BarChart7.png | 29520 | 2018-10-17 11:12:10 |
| filing694.htm | 59825 | 2018-10-17 11:12:10 |
| FilingSummary.xml | 10800 | 2018-10-17 11:12:10 |
| ovt-20180929.xml | 252914 | 2018-10-17 11:12:10 |
| ovt-20180929.xsd | 39409 | 2018-10-17 11:12:10 |
| ovt-20180929_cal.xml | 6812 | 2018-10-17 11:12:10 |
| ovt-20180929_def.xml | 1632568 | 2018-10-17 11:12:10 |
| ovt-20180929_lab.xml | 175367 | 2018-10-17 11:12:10 |
| ovt-20180929_pre.xml | 1174110 | 2018-10-17 11:12:10 |
| R1.htm | 16202 | 2018-10-17 11:12:10 |
| R15.htm | 192424 | 2018-10-17 11:12:10 |
| R16.htm | 113275 | 2018-10-17 11:12:10 |
| R2.htm | 113424 | 2018-10-17 11:12:10 |
| R22.htm | 192283 | 2018-10-17 11:12:10 |
| R23.htm | 113171 | 2018-10-17 11:12:10 |
| R29.htm | 192180 | 2018-10-17 11:12:10 |
| R30.htm | 113171 | 2018-10-17 11:12:10 |
| R36.htm | 192180 | 2018-10-17 11:12:10 |
| R37.htm | 111994 | 2018-10-17 11:12:10 |
| R43.htm | 192556 | 2018-10-17 11:12:10 |
| R44.htm | 113058 | 2018-10-17 11:12:10 |
| R50.htm | 192067 | 2018-10-17 11:12:10 |
| R51.htm | 7492 | 2018-10-17 11:12:10 |
| R8.htm | 192426 | 2018-10-17 11:12:10 |
| R9.htm | 113418 | 2018-10-17 11:12:10 |
| report.css | 2767 | 2018-10-17 11:12:10 |
| Show.js | 1085 | 2018-10-17 11:12:10 |