Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-21-019853-index-headers.html | 2021-08-13 14:15:46 | |
| 0001437749-21-019853-index.html | 2021-08-13 14:15:46 | |
| 0001437749-21-019853.txt | 2021-08-13 14:15:46 | |
 0001437749-21-019853-xbrl.zip | 137093 | 2021-08-13 14:15:46 |
| ex_270007.htm | 9142 | 2021-08-13 14:15:46 |
| ex_270008.htm | 9087 | 2021-08-13 14:15:46 |
| ex_270009.htm | 4749 | 2021-08-13 14:15:46 |
| ex_270010.htm | 4771 | 2021-08-13 14:15:46 |
| FilingSummary.xml | 23327 | 2021-08-13 14:15:46 |
| Financial_Report.xlsx | 51511 | 2021-08-13 14:15:46 |
| MetaLinks.json | 446262 | 2021-08-13 14:15:46 |
| R1.htm | 49322 | 2021-08-13 14:15:46 |
| R10.htm | 27797 | 2021-08-13 14:15:46 |
| R11.htm | 171007 | 2021-08-13 14:15:46 |
| R12.htm | 8919 | 2021-08-13 14:15:46 |
| R13.htm | 6210 | 2021-08-13 14:15:46 |
| R14.htm | 32093 | 2021-08-13 14:15:46 |
| R15.htm | 210059 | 2021-08-13 14:15:46 |
| R16.htm | 25779 | 2021-08-13 14:15:46 |
| R17.htm | 161888 | 2021-08-13 14:15:46 |
| R18.htm | 14089 | 2021-08-13 14:15:46 |
| R19.htm | 28753 | 2021-08-13 14:15:46 |
| R2.htm | 104622 | 2021-08-13 14:15:46 |
| R20.htm | 27245 | 2021-08-13 14:15:46 |
| R21.htm | 39407 | 2021-08-13 14:15:46 |
| R22.htm | 7386 | 2021-08-13 14:15:46 |
| R23.htm | 35561 | 2021-08-13 14:15:46 |
| R24.htm | 10392 | 2021-08-13 14:15:46 |
| R25.htm | 8508 | 2021-08-13 14:15:46 |
| R26.htm | 7063 | 2021-08-13 14:15:46 |
| R27.htm | 16864 | 2021-08-13 14:15:46 |
| R28.htm | 8235 | 2021-08-13 14:15:46 |
| R29.htm | 2966 | 2021-08-13 14:15:46 |
| R3.htm | 13344 | 2021-08-13 14:15:46 |
| R30.htm | 65103 | 2021-08-13 14:15:46 |
| R31.htm | 14990 | 2021-08-13 14:15:46 |
| R32.htm | 37496 | 2021-08-13 14:15:46 |
| R33.htm | 10575 | 2021-08-13 14:15:46 |
| R4.htm | 69069 | 2021-08-13 14:15:46 |
| R5.htm | 45058 | 2021-08-13 14:15:46 |
| R6.htm | 3949 | 2021-08-13 14:15:46 |
| R7.htm | 108666 | 2021-08-13 14:15:46 |
| R8.htm | 29196 | 2021-08-13 14:15:46 |
| R9.htm | 208763 | 2021-08-13 14:15:46 |
| report.css | 2767 | 2021-08-13 14:15:46 |
| Show.js | 1085 | 2021-08-13 14:15:46 |
| usac-20210630.xsd | 37168 | 2021-08-13 14:15:46 |
| usac-20210630_cal.xml | 47122 | 2021-08-13 14:15:46 |
| usac-20210630_def.xml | 249376 | 2021-08-13 14:15:46 |
| usac-20210630_lab.xml | 235559 | 2021-08-13 14:15:46 |
| usac-20210630_pre.xml | 272199 | 2021-08-13 14:15:46 |
| usac20210630_10q.htm | 1456015 | 2021-08-13 14:15:46 |
| usac20210630_10q_htm.xml | 1340768 | 2021-08-13 14:15:46 |