Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001558370-20-005348-index-headers.html | 2020-05-06 13:03:27 | |
| 0001558370-20-005348-index.html | 2020-05-06 13:03:27 | |
| 0001558370-20-005348.txt | 2020-05-06 13:03:27 | |
 0001558370-20-005348-xbrl.zip | 109920 | 2020-05-06 13:03:27 |
| FilingSummary.xml | 28672 | 2020-05-06 13:03:27 |
| Financial_Report.xlsx | 59471 | 2020-05-06 13:03:27 |
| R1.htm | 33233 | 2020-05-06 13:03:27 |
| R10.htm | 26051 | 2020-05-06 13:03:27 |
| R11.htm | 42553 | 2020-05-06 13:03:27 |
| R12.htm | 166618 | 2020-05-06 13:03:27 |
| R13.htm | 26495 | 2020-05-06 13:03:27 |
| R14.htm | 68599 | 2020-05-06 13:03:27 |
| R15.htm | 27384 | 2020-05-06 13:03:27 |
| R16.htm | 41022 | 2020-05-06 13:03:27 |
| R17.htm | 40865 | 2020-05-06 13:03:27 |
| R18.htm | 12024 | 2020-05-06 13:03:27 |
| R19.htm | 23839 | 2020-05-06 13:03:27 |
| R2.htm | 102585 | 2020-05-06 13:03:27 |
| R20.htm | 38165 | 2020-05-06 13:03:27 |
| R21.htm | 171283 | 2020-05-06 13:03:27 |
| R22.htm | 65555 | 2020-05-06 13:03:27 |
| R23.htm | 21828 | 2020-05-06 13:03:27 |
| R24.htm | 39700 | 2020-05-06 13:03:27 |
| R25.htm | 37516 | 2020-05-06 13:03:27 |
| R26.htm | 14645 | 2020-05-06 13:03:27 |
| R27.htm | 26522 | 2020-05-06 13:03:27 |
| R28.htm | 13607 | 2020-05-06 13:03:27 |
| R29.htm | 33176 | 2020-05-06 13:03:27 |
| R3.htm | 15806 | 2020-05-06 13:03:27 |
| R30.htm | 58365 | 2020-05-06 13:03:27 |
| R31.htm | 9741 | 2020-05-06 13:03:27 |
| R32.htm | 38241 | 2020-05-06 13:03:27 |
| R33.htm | 19491 | 2020-05-06 13:03:27 |
| R34.htm | 13284 | 2020-05-06 13:03:27 |
| R35.htm | 11631 | 2020-05-06 13:03:27 |
| R36.htm | 36810 | 2020-05-06 13:03:27 |
| R37.htm | 31064 | 2020-05-06 13:03:27 |
| R38.htm | 29627 | 2020-05-06 13:03:27 |
| R39.htm | 23671 | 2020-05-06 13:03:27 |
| R4.htm | 80206 | 2020-05-06 13:03:27 |
| R40.htm | 16415 | 2020-05-06 13:03:27 |
| R41.htm | 23023 | 2020-05-06 13:03:27 |
| R42.htm | 29890 | 2020-05-06 13:03:27 |
| R43.htm | 12719 | 2020-05-06 13:03:27 |
| R44.htm | 6757 | 2020-05-06 13:03:27 |
| R45.htm | 4772 | 2020-05-06 13:03:27 |
| R46.htm | 29170 | 2020-05-06 13:03:27 |
| R47.htm | 16907 | 2020-05-06 13:03:27 |
| R48.htm | 5036 | 2020-05-06 13:03:27 |
| R5.htm | 96407 | 2020-05-06 13:03:27 |
| R6.htm | 21550 | 2020-05-06 13:03:27 |
| R7.htm | 6928 | 2020-05-06 13:03:27 |
| R8.htm | 11003 | 2020-05-06 13:03:27 |
| R9.htm | 6764 | 2020-05-06 13:03:27 |
| report.css | 2767 | 2020-05-06 13:03:27 |
| Show.js | 1085 | 2020-05-06 13:03:27 |
| usx-20200331.xml | 1019739 | 2020-05-06 13:03:27 |
| usx-20200331.xsd | 39892 | 2020-05-06 13:03:27 |
| usx-20200331ex101503280.htm | 1971603 | 2020-05-06 13:03:27 |
| usx-20200331ex102f16440.htm | 146564 | 2020-05-06 13:03:27 |
| usx-20200331ex10302366b.htm | 140508 | 2020-05-06 13:03:27 |
| usx-20200331ex311a1e3b8.htm | 15807 | 2020-05-06 13:03:27 |
| usx-20200331ex312a73c67.htm | 15378 | 2020-05-06 13:03:27 |
| usx-20200331ex321000991.htm | 8112 | 2020-05-06 13:03:27 |
| usx-20200331ex32242b539.htm | 8125 | 2020-05-06 13:03:27 |
| usx-20200331x10q.htm | 1622192 | 2020-05-06 13:03:27 |
| usx-20200331_cal.xml | 67163 | 2020-05-06 13:03:27 |
| usx-20200331_def.xml | 188401 | 2020-05-06 13:03:27 |
| usx-20200331_lab.xml | 405101 | 2020-05-06 13:03:27 |
| usx-20200331_pre.xml | 328759 | 2020-05-06 13:03:27 |
 usx20200331ex10302366b001.jpg | 7326 | 2020-05-06 13:03:27 |
 usx20200331x10q001.jpg | 73072 | 2020-05-06 13:03:27 |