Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001402829-16-000040-index-headers.html | 2016-03-15 16:28:01 | |
| 0001402829-16-000040-index.html | 2016-03-15 16:28:01 | |
| 0001402829-16-000040.txt | 2016-03-15 16:28:01 | |
 0001402829-16-000040-xbrl.zip | 290378 | 2016-03-15 16:28:01 |
 comparisonof5year10kgraph16.jpg | 70923 | 2016-03-15 16:28:01 |
| FilingSummary.xml | 55011 | 2016-03-15 16:28:01 |
| Financial_Report.xlsx | 122735 | 2016-03-15 16:28:01 |
| orn-20151231.xml | 2013687 | 2016-03-15 16:28:01 |
| orn-20151231.xsd | 77908 | 2016-03-15 16:28:01 |
| orn-20151231_cal.xml | 132176 | 2016-03-15 16:28:01 |
| orn-20151231_def.xml | 338315 | 2016-03-15 16:28:01 |
| orn-20151231_lab.xml | 986676 | 2016-03-15 16:28:01 |
| orn-20151231_pre.xml | 585079 | 2016-03-15 16:28:01 |
| orn12312015-211.htm | 51543 | 2016-03-15 16:28:01 |
| orn12312015-231.htm | 3248 | 2016-03-15 16:28:01 |
| orn12312015-311.htm | 13793 | 2016-03-15 16:28:01 |
| orn12312015-312.htm | 13744 | 2016-03-15 16:28:01 |
| orn12312015-321.htm | 8354 | 2016-03-15 16:28:01 |
| orn12312015.htm | 1957404 | 2016-03-15 16:28:01 |
| R1.htm | 28404 | 2016-03-15 16:28:01 |
| R10.htm | 73506 | 2016-03-15 16:28:01 |
| R11.htm | 36563 | 2016-03-15 16:28:01 |
| R12.htm | 57908 | 2016-03-15 16:28:01 |
| R13.htm | 25728 | 2016-03-15 16:28:01 |
| R14.htm | 29602 | 2016-03-15 16:28:01 |
| R15.htm | 7428 | 2016-03-15 16:28:01 |
| R16.htm | 11240 | 2016-03-15 16:28:01 |
| R17.htm | 44837 | 2016-03-15 16:28:01 |
| R18.htm | 19438 | 2016-03-15 16:28:01 |
| R19.htm | 34731 | 2016-03-15 16:28:01 |
| R2.htm | 105049 | 2016-03-15 16:28:01 |
| R20.htm | 6097 | 2016-03-15 16:28:01 |
| R21.htm | 145995 | 2016-03-15 16:28:01 |
| R22.htm | 30269 | 2016-03-15 16:28:01 |
| R23.htm | 116689 | 2016-03-15 16:28:01 |
| R24.htm | 39239 | 2016-03-15 16:28:01 |
| R25.htm | 20600 | 2016-03-15 16:28:01 |
| R26.htm | 30957 | 2016-03-15 16:28:01 |
| R27.htm | 7924 | 2016-03-15 16:28:01 |
| R28.htm | 93229 | 2016-03-15 16:28:01 |
| R29.htm | 22874 | 2016-03-15 16:28:01 |
| R3.htm | 24422 | 2016-03-15 16:28:01 |
| R30.htm | 111676 | 2016-03-15 16:28:01 |
| R31.htm | 28900 | 2016-03-15 16:28:01 |
| R32.htm | 28764 | 2016-03-15 16:28:01 |
| R33.htm | 56288 | 2016-03-15 16:28:01 |
| R34.htm | 22312 | 2016-03-15 16:28:01 |
| R35.htm | 28901 | 2016-03-15 16:28:01 |
| R36.htm | 40903 | 2016-03-15 16:28:01 |
| R37.htm | 18989 | 2016-03-15 16:28:01 |
| R38.htm | 10313 | 2016-03-15 16:28:01 |
| R39.htm | 143006 | 2016-03-15 16:28:01 |
| R4.htm | 48097 | 2016-03-15 16:28:01 |
| R40.htm | 26081 | 2016-03-15 16:28:01 |
| R41.htm | 110030 | 2016-03-15 16:28:01 |
| R42.htm | 30745 | 2016-03-15 16:28:01 |
| R43.htm | 12409 | 2016-03-15 16:28:01 |
| R44.htm | 25975 | 2016-03-15 16:28:01 |
| R45.htm | 91830 | 2016-03-15 16:28:01 |
| R46.htm | 7061 | 2016-03-15 16:28:01 |
| R47.htm | 7205 | 2016-03-15 16:28:01 |
| R48.htm | 4777 | 2016-03-15 16:28:01 |
| R49.htm | 62538 | 2016-03-15 16:28:01 |
| R5.htm | 12521 | 2016-03-15 16:28:01 |
| R50.htm | 31211 | 2016-03-15 16:28:01 |
| R51.htm | 9012 | 2016-03-15 16:28:01 |
| R52.htm | 23884 | 2016-03-15 16:28:01 |
| R53.htm | 27860 | 2016-03-15 16:28:01 |
| R54.htm | 30794 | 2016-03-15 16:28:01 |
| R55.htm | 12340 | 2016-03-15 16:28:01 |
| R56.htm | 57448 | 2016-03-15 16:28:01 |
| R57.htm | 19339 | 2016-03-15 16:28:01 |
| R58.htm | 26564 | 2016-03-15 16:28:01 |
| R59.htm | 14551 | 2016-03-15 16:28:01 |
| R6.htm | 5298 | 2016-03-15 16:28:01 |
| R60.htm | 6779 | 2016-03-15 16:28:01 |
| R61.htm | 6582 | 2016-03-15 16:28:01 |
| R62.htm | 7263 | 2016-03-15 16:28:01 |
| R63.htm | 15491 | 2016-03-15 16:28:01 |
| R64.htm | 26929 | 2016-03-15 16:28:01 |
| R65.htm | 17626 | 2016-03-15 16:28:01 |
| R66.htm | 22664 | 2016-03-15 16:28:01 |
| R67.htm | 17741 | 2016-03-15 16:28:01 |
| R68.htm | 37433 | 2016-03-15 16:28:01 |
| R69.htm | 28892 | 2016-03-15 16:28:01 |
| R7.htm | 58586 | 2016-03-15 16:28:01 |
| R70.htm | 17290 | 2016-03-15 16:28:01 |
| R71.htm | 9189 | 2016-03-15 16:28:01 |
| R72.htm | 12606 | 2016-03-15 16:28:01 |
| R73.htm | 13295 | 2016-03-15 16:28:01 |
| R74.htm | 10443 | 2016-03-15 16:28:01 |
| R75.htm | 18494 | 2016-03-15 16:28:01 |
| R76.htm | 40708 | 2016-03-15 16:28:01 |
| R77.htm | 29255 | 2016-03-15 16:28:01 |
| R78.htm | 56341 | 2016-03-15 16:28:01 |
| R79.htm | 10115 | 2016-03-15 16:28:01 |
| R8.htm | 100780 | 2016-03-15 16:28:01 |
| R80.htm | 14798 | 2016-03-15 16:28:01 |
| R81.htm | 10051 | 2016-03-15 16:28:01 |
| R82.htm | 58416 | 2016-03-15 16:28:01 |
| R83.htm | 26151 | 2016-03-15 16:28:01 |
| R84.htm | 45064 | 2016-03-15 16:28:01 |
| R85.htm | 15803 | 2016-03-15 16:28:01 |
| R86.htm | 24610 | 2016-03-15 16:28:01 |
| R87.htm | 24291 | 2016-03-15 16:28:01 |
| R88.htm | 33221 | 2016-03-15 16:28:01 |
| R89.htm | 19421 | 2016-03-15 16:28:01 |
| R9.htm | 11510 | 2016-03-15 16:28:01 |
| R90.htm | 16962 | 2016-03-15 16:28:01 |
| R91.htm | 29616 | 2016-03-15 16:28:01 |
| R92.htm | 14128 | 2016-03-15 16:28:01 |
| R93.htm | 30245 | 2016-03-15 16:28:01 |
| R94.htm | 11364 | 2016-03-15 16:28:01 |
| report.css | 2768 | 2016-03-15 16:28:01 |
| Show.js | 1411 | 2016-03-15 16:28:01 |