Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001047469-17-007004-index-headers.html | 2017-11-13 15:05:06 | |
| 0001047469-17-007004-index.html | 2017-11-13 15:05:06 | |
| 0001047469-17-007004.txt | 2017-11-13 15:05:06 | |
 0001047469-17-007004-xbrl.zip | 131216 | 2017-11-13 15:05:06 |
| a2233732z10-q.htm | 1033533 | 2017-11-13 15:05:06 |
| a2233732zex-10_1.htm | 208228 | 2017-11-13 15:05:06 |
| a2233732zex-31_1.htm | 12073 | 2017-11-13 15:05:06 |
| a2233732zex-31_2.htm | 12109 | 2017-11-13 15:05:06 |
| a2233732zex-32_1.htm | 6125 | 2017-11-13 15:05:06 |
| a2233732zex-32_2.htm | 6506 | 2017-11-13 15:05:06 |
| a2233732zex-4_1.htm | 249994 | 2017-11-13 15:05:06 |
| a2233732zex-4_2.htm | 241182 | 2017-11-13 15:05:06 |
| a2233732zex-4_3.htm | 22927 | 2017-11-13 15:05:06 |
| 140800 | 2017-11-13 15:05:06 | |
| FilingSummary.xml | 22923 | 2017-11-13 15:05:06 |
| Financial_Report.xlsx | 56879 | 2017-11-13 15:05:06 |
 g206082kii001.gif | 4394 | 2017-11-13 15:05:06 |
 g818753.jpg | 10825 | 2017-11-13 15:05:06 |
| opc-20170930.xml | 1895085 | 2017-11-13 15:05:06 |
| opc-20170930.xsd | 50185 | 2017-11-13 15:05:06 |
| opc-20170930_cal.xml | 59156 | 2017-11-13 15:05:06 |
| opc-20170930_def.xml | 118820 | 2017-11-13 15:05:06 |
| opc-20170930_lab.xml | 408841 | 2017-11-13 15:05:06 |
| opc-20170930_pre.xml | 253811 | 2017-11-13 15:05:06 |
| R1.htm | 21630 | 2017-11-13 15:05:06 |
| R10.htm | 103231 | 2017-11-13 15:05:06 |
| R11.htm | 16457 | 2017-11-13 15:05:06 |
| R12.htm | 91640 | 2017-11-13 15:05:06 |
| R13.htm | 9493 | 2017-11-13 15:05:06 |
| R14.htm | 5588 | 2017-11-13 15:05:06 |
| R15.htm | 96286 | 2017-11-13 15:05:06 |
| R16.htm | 5206 | 2017-11-13 15:05:06 |
| R17.htm | 17897 | 2017-11-13 15:05:06 |
| R18.htm | 24658 | 2017-11-13 15:05:06 |
| R19.htm | 237249 | 2017-11-13 15:05:06 |
| R2.htm | 106169 | 2017-11-13 15:05:06 |
| R20.htm | 221727 | 2017-11-13 15:05:06 |
| R21.htm | 120011 | 2017-11-13 15:05:06 |
| R22.htm | 109599 | 2017-11-13 15:05:06 |
| R23.htm | 120543 | 2017-11-13 15:05:06 |
| R24.htm | 4099 | 2017-11-13 15:05:06 |
| R25.htm | 54195 | 2017-11-13 15:05:06 |
| R26.htm | 8285 | 2017-11-13 15:05:06 |
| R27.htm | 27480 | 2017-11-13 15:05:06 |
| R28.htm | 12484 | 2017-11-13 15:05:06 |
| R29.htm | 20956 | 2017-11-13 15:05:06 |
| R3.htm | 44262 | 2017-11-13 15:05:06 |
| R30.htm | 27291 | 2017-11-13 15:05:06 |
| R31.htm | 22805 | 2017-11-13 15:05:06 |
| R32.htm | 4183 | 2017-11-13 15:05:06 |
| R33.htm | 15719 | 2017-11-13 15:05:06 |
| R34.htm | 8466 | 2017-11-13 15:05:06 |
| R35.htm | 64239 | 2017-11-13 15:05:06 |
| R36.htm | 33959 | 2017-11-13 15:05:06 |
| R37.htm | 87529 | 2017-11-13 15:05:06 |
| R4.htm | 12137 | 2017-11-13 15:05:06 |
| R5.htm | 18863 | 2017-11-13 15:05:06 |
| R6.htm | 97808 | 2017-11-13 15:05:06 |
| R7.htm | 8127 | 2017-11-13 15:05:06 |
| R8.htm | 195895 | 2017-11-13 15:05:06 |
| R9.htm | 191771 | 2017-11-13 15:05:06 |
| report.css | 2767 | 2017-11-13 15:05:06 |
| Show.js | 1410 | 2017-11-13 15:05:06 |