Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001402829-23-000029-index-headers.html | 2023-05-15 16:46:38 | |
| 0001402829-23-000029-index.html | 2023-05-15 16:46:38 | |
| 0001402829-23-000029.txt | 2023-05-15 16:46:38 | |
 0001402829-23-000029-xbrl.zip | 409742 | 2023-05-15 16:46:38 |
| FilingSummary.xml | 47351 | 2023-05-15 16:46:38 |
| Financial_Report.xlsx | 114262 | 2023-05-15 16:46:38 |
| MetaLinks.json | 800559 | 2023-05-15 16:46:38 |
| orn-20230331.xsd | 66897 | 2023-05-15 16:46:38 |
| orn-20230331x10q.htm | 1680996 | 2023-05-15 16:46:38 |
| orn-20230331x10q_htm.xml | 1653397 | 2023-05-15 16:46:38 |
| orn-20230331xex10d3.htm | 1344664 | 2023-05-15 16:46:38 |
| orn-20230331xex31d1.htm | 8758 | 2023-05-15 16:46:38 |
| orn-20230331xex31d2.htm | 8782 | 2023-05-15 16:46:38 |
| orn-20230331xex32d1.htm | 7427 | 2023-05-15 16:46:38 |
| orn-20230331_cal.xml | 94572 | 2023-05-15 16:46:38 |
| orn-20230331_def.xml | 219049 | 2023-05-15 16:46:38 |
| orn-20230331_lab.xml | 556315 | 2023-05-15 16:46:38 |
| orn-20230331_pre.xml | 421829 | 2023-05-15 16:46:38 |
| R1.htm | 53153 | 2023-05-15 16:46:38 |
| R10.htm | 63078 | 2023-05-15 16:46:38 |
| R11.htm | 34400 | 2023-05-15 16:46:38 |
| R12.htm | 34051 | 2023-05-15 16:46:38 |
| R13.htm | 21037 | 2023-05-15 16:46:38 |
| R14.htm | 37603 | 2023-05-15 16:46:38 |
| R15.htm | 39530 | 2023-05-15 16:46:38 |
| R16.htm | 26738 | 2023-05-15 16:46:38 |
| R17.htm | 75245 | 2023-05-15 16:46:38 |
| R18.htm | 19130 | 2023-05-15 16:46:38 |
| R19.htm | 23071 | 2023-05-15 16:46:38 |
| R2.htm | 128528 | 2023-05-15 16:46:38 |
| R20.htm | 20321 | 2023-05-15 16:46:38 |
| R21.htm | 13031 | 2023-05-15 16:46:38 |
| R22.htm | 7903 | 2023-05-15 16:46:38 |
| R23.htm | 45649 | 2023-05-15 16:46:38 |
| R24.htm | 113437 | 2023-05-15 16:46:38 |
| R25.htm | 9003 | 2023-05-15 16:46:38 |
| R26.htm | 88491 | 2023-05-15 16:46:38 |
| R27.htm | 10195 | 2023-05-15 16:46:38 |
| R28.htm | 35057 | 2023-05-15 16:46:38 |
| R29.htm | 64521 | 2023-05-15 16:46:38 |
| R3.htm | 23114 | 2023-05-15 16:46:38 |
| R30.htm | 27712 | 2023-05-15 16:46:38 |
| R31.htm | 31480 | 2023-05-15 16:46:38 |
| R32.htm | 20342 | 2023-05-15 16:46:38 |
| R33.htm | 30264 | 2023-05-15 16:46:38 |
| R34.htm | 40370 | 2023-05-15 16:46:38 |
| R35.htm | 25713 | 2023-05-15 16:46:38 |
| R36.htm | 60395 | 2023-05-15 16:46:38 |
| R37.htm | 16703 | 2023-05-15 16:46:38 |
| R38.htm | 17477 | 2023-05-15 16:46:38 |
| R39.htm | 17928 | 2023-05-15 16:46:38 |
| R4.htm | 78347 | 2023-05-15 16:46:38 |
| R40.htm | 41152 | 2023-05-15 16:46:38 |
| R41.htm | 147654 | 2023-05-15 16:46:38 |
| R42.htm | 21070 | 2023-05-15 16:46:38 |
| R43.htm | 9896 | 2023-05-15 16:46:38 |
| R44.htm | 33162 | 2023-05-15 16:46:38 |
| R45.htm | 23146 | 2023-05-15 16:46:38 |
| R46.htm | 24057 | 2023-05-15 16:46:38 |
| R47.htm | 50555 | 2023-05-15 16:46:38 |
| R48.htm | 18585 | 2023-05-15 16:46:38 |
| R49.htm | 5740 | 2023-05-15 16:46:38 |
| R5.htm | 52707 | 2023-05-15 16:46:38 |
| R50.htm | 10824 | 2023-05-15 16:46:38 |
| R51.htm | 26388 | 2023-05-15 16:46:38 |
| R52.htm | 4740 | 2023-05-15 16:46:38 |
| R53.htm | 12550 | 2023-05-15 16:46:38 |
| R54.htm | 10373 | 2023-05-15 16:46:38 |
| R55.htm | 11281 | 2023-05-15 16:46:38 |
| R56.htm | 22800 | 2023-05-15 16:46:38 |
| R57.htm | 17214 | 2023-05-15 16:46:38 |
| R58.htm | 9167 | 2023-05-15 16:46:38 |
| R59.htm | 21577 | 2023-05-15 16:46:38 |
| R6.htm | 92613 | 2023-05-15 16:46:38 |
| R60.htm | 54930 | 2023-05-15 16:46:38 |
| R61.htm | 25853 | 2023-05-15 16:46:38 |
| R62.htm | 8648 | 2023-05-15 16:46:38 |
| R63.htm | 13186 | 2023-05-15 16:46:38 |
| R64.htm | 10006 | 2023-05-15 16:46:38 |
| R65.htm | 13686 | 2023-05-15 16:46:38 |
| R66.htm | 11188 | 2023-05-15 16:46:38 |
| R67.htm | 4805 | 2023-05-15 16:46:38 |
| R68.htm | 11936 | 2023-05-15 16:46:38 |
| R69.htm | 55682 | 2023-05-15 16:46:38 |
| R7.htm | 18036 | 2023-05-15 16:46:38 |
| R70.htm | 46836 | 2023-05-15 16:46:38 |
| R71.htm | 24147 | 2023-05-15 16:46:38 |
| R72.htm | 11533 | 2023-05-15 16:46:38 |
| R73.htm | 13830 | 2023-05-15 16:46:38 |
| R74.htm | 13633 | 2023-05-15 16:46:38 |
| R75.htm | 47924 | 2023-05-15 16:46:38 |
| R76.htm | 11587 | 2023-05-15 16:46:38 |
| R77.htm | 41910 | 2023-05-15 16:46:38 |
| R8.htm | 52827 | 2023-05-15 16:46:38 |
| R9.htm | 41832 | 2023-05-15 16:46:38 |
| report.css | 2767 | 2023-05-15 16:46:38 |
| Show.js | 1085 | 2023-05-15 16:46:38 |