Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001493152-20-013170-index-headers.html | 2020-07-13 16:52:01 | |
| 0001493152-20-013170-index.html | 2020-07-13 16:52:01 | |
| 0001493152-20-013170.txt | 2020-07-13 16:52:01 | |
 0001493152-20-013170-xbrl.zip | 137066 | 2020-07-13 16:52:01 |
| ex10-18.htm | 49168 | 2020-07-13 16:52:01 |
 ex10-18_001.jpg | 52491 | 2020-07-13 16:52:01 |
 ex10-18_002.jpg | 147789 | 2020-07-13 16:52:01 |
 ex10-18_003.jpg | 136658 | 2020-07-13 16:52:01 |
 ex10-18_004.jpg | 141406 | 2020-07-13 16:52:01 |
 ex10-18_005.jpg | 62704 | 2020-07-13 16:52:01 |
 ex10-18_006.jpg | 165724 | 2020-07-13 16:52:01 |
 ex10-18_007.jpg | 143897 | 2020-07-13 16:52:01 |
 ex10-18_008.jpg | 205453 | 2020-07-13 16:52:01 |
 ex10-18_009.jpg | 195022 | 2020-07-13 16:52:01 |
 ex10-18_010.jpg | 219766 | 2020-07-13 16:52:01 |
 ex10-18_011.jpg | 155195 | 2020-07-13 16:52:01 |
 ex10-18_012.jpg | 196184 | 2020-07-13 16:52:01 |
 ex10-18_013.jpg | 169539 | 2020-07-13 16:52:01 |
 ex10-18_014.jpg | 144880 | 2020-07-13 16:52:01 |
 ex10-18_015.jpg | 244221 | 2020-07-13 16:52:01 |
 ex10-18_016.jpg | 197370 | 2020-07-13 16:52:01 |
 ex10-18_017.jpg | 225328 | 2020-07-13 16:52:01 |
 ex10-18_018.jpg | 210293 | 2020-07-13 16:52:01 |
 ex10-18_019.jpg | 219580 | 2020-07-13 16:52:01 |
 ex10-18_020.jpg | 206443 | 2020-07-13 16:52:01 |
 ex10-18_021.jpg | 176144 | 2020-07-13 16:52:01 |
 ex10-18_022.jpg | 160525 | 2020-07-13 16:52:01 |
 ex10-18_023.jpg | 176413 | 2020-07-13 16:52:01 |
 ex10-18_024.jpg | 186415 | 2020-07-13 16:52:01 |
 ex10-18_025.jpg | 204638 | 2020-07-13 16:52:01 |
 ex10-18_026.jpg | 211764 | 2020-07-13 16:52:01 |
 ex10-18_027.jpg | 198032 | 2020-07-13 16:52:01 |
 ex10-18_028.jpg | 170661 | 2020-07-13 16:52:01 |
 ex10-18_029.jpg | 160346 | 2020-07-13 16:52:01 |
 ex10-18_030.jpg | 195846 | 2020-07-13 16:52:01 |
 ex10-18_031.jpg | 211518 | 2020-07-13 16:52:01 |
 ex10-18_032.jpg | 194096 | 2020-07-13 16:52:01 |
 ex10-18_033.jpg | 195463 | 2020-07-13 16:52:01 |
 ex10-18_034.jpg | 204449 | 2020-07-13 16:52:01 |
 ex10-18_035.jpg | 234534 | 2020-07-13 16:52:01 |
 ex10-18_036.jpg | 191676 | 2020-07-13 16:52:01 |
 ex10-18_037.jpg | 160686 | 2020-07-13 16:52:01 |
 ex10-18_038.jpg | 113235 | 2020-07-13 16:52:01 |
 ex10-18_039.jpg | 167113 | 2020-07-13 16:52:01 |
 ex10-18_040.jpg | 205639 | 2020-07-13 16:52:01 |
 ex10-18_041.jpg | 72237 | 2020-07-13 16:52:01 |
 ex10-18_042.jpg | 65491 | 2020-07-13 16:52:01 |
 ex10-18_043.jpg | 97532 | 2020-07-13 16:52:01 |
 ex10-18_044.jpg | 86522 | 2020-07-13 16:52:01 |
 ex10-18_045.jpg | 196423 | 2020-07-13 16:52:01 |
 ex10-18_046.jpg | 214057 | 2020-07-13 16:52:01 |
 ex10-18_047.jpg | 200983 | 2020-07-13 16:52:01 |
 ex10-18_048.jpg | 218622 | 2020-07-13 16:52:01 |
 ex10-18_049.jpg | 214273 | 2020-07-13 16:52:01 |
 ex10-18_050.jpg | 244426 | 2020-07-13 16:52:01 |
 ex10-18_051.jpg | 211776 | 2020-07-13 16:52:01 |
 ex10-18_052.jpg | 197826 | 2020-07-13 16:52:01 |
 ex10-18_053.jpg | 184631 | 2020-07-13 16:52:01 |
 ex10-18_054.jpg | 222368 | 2020-07-13 16:52:01 |
 ex10-18_055.jpg | 230105 | 2020-07-13 16:52:01 |
 ex10-18_056.jpg | 210387 | 2020-07-13 16:52:01 |
 ex10-18_057.jpg | 211152 | 2020-07-13 16:52:01 |
 ex10-18_058.jpg | 212282 | 2020-07-13 16:52:01 |
 ex10-18_059.jpg | 231016 | 2020-07-13 16:52:01 |
| ex14-1.htm | 42832 | 2020-07-13 16:52:01 |
| ex23-1.htm | 5095 | 2020-07-13 16:52:01 |
| ex23-2.htm | 3358 | 2020-07-13 16:52:01 |
| ex31-1.htm | 16699 | 2020-07-13 16:52:01 |
| ex31-2.htm | 17405 | 2020-07-13 16:52:01 |
| ex32-1.htm | 6670 | 2020-07-13 16:52:01 |
| ex32-2.htm | 6453 | 2020-07-13 16:52:01 |
| ex4-6.htm | 38732 | 2020-07-13 16:52:01 |
| FilingSummary.xml | 31702 | 2020-07-13 16:52:01 |
| Financial_Report.xlsx | 91920 | 2020-07-13 16:52:01 |
| form10-k.htm | 1574732 | 2020-07-13 16:52:01 |
 form10-k_001.jpg | 4577 | 2020-07-13 16:52:01 |
 form10-k_002.jpg | 36025 | 2020-07-13 16:52:01 |
 form10-k_003.jpg | 72268 | 2020-07-13 16:52:01 |
 form10-k_004.jpg | 39166 | 2020-07-13 16:52:01 |
 form10-k_005.jpg | 174635 | 2020-07-13 16:52:01 |
 form10-k_006.jpg | 133233 | 2020-07-13 16:52:01 |
 form10-k_007.jpg | 28252 | 2020-07-13 16:52:01 |
 form10-k_008.jpg | 130578 | 2020-07-13 16:52:01 |
 form10-k_009.jpg | 136360 | 2020-07-13 16:52:01 |
 form10-k_010.jpg | 116942 | 2020-07-13 16:52:01 |
 form10-k_011.jpg | 115681 | 2020-07-13 16:52:01 |
 form10-k_012.jpg | 64370 | 2020-07-13 16:52:01 |
 form10-k_013.jpg | 65233 | 2020-07-13 16:52:01 |
 form10-k_014.jpg | 221958 | 2020-07-13 16:52:01 |
 form10-k_015.jpg | 71503 | 2020-07-13 16:52:01 |
 form10-k_016.jpg | 183661 | 2020-07-13 16:52:01 |
| R1.htm | 35418 | 2020-07-13 16:52:01 |
| R10.htm | 22347 | 2020-07-13 16:52:01 |
| R11.htm | 8781 | 2020-07-13 16:52:01 |
| R12.htm | 9181 | 2020-07-13 16:52:01 |
| R13.htm | 8435 | 2020-07-13 16:52:01 |
| R14.htm | 85770 | 2020-07-13 16:52:01 |
| R15.htm | 9977 | 2020-07-13 16:52:01 |
| R16.htm | 16498 | 2020-07-13 16:52:01 |
| R17.htm | 32493 | 2020-07-13 16:52:01 |
| R18.htm | 5150 | 2020-07-13 16:52:01 |
| R19.htm | 76059 | 2020-07-13 16:52:01 |
| R2.htm | 80436 | 2020-07-13 16:52:01 |
| R20.htm | 13563 | 2020-07-13 16:52:01 |
| R21.htm | 7968 | 2020-07-13 16:52:01 |
| R22.htm | 8190 | 2020-07-13 16:52:01 |
| R23.htm | 62443 | 2020-07-13 16:52:01 |
| R24.htm | 9297 | 2020-07-13 16:52:01 |
| R25.htm | 16238 | 2020-07-13 16:52:01 |
| R26.htm | 31059 | 2020-07-13 16:52:01 |
| R27.htm | 10832 | 2020-07-13 16:52:01 |
| R28.htm | 28398 | 2020-07-13 16:52:01 |
| R29.htm | 32305 | 2020-07-13 16:52:01 |
| R3.htm | 24584 | 2020-07-13 16:52:01 |
| R30.htm | 90164 | 2020-07-13 16:52:01 |
| R31.htm | 13168 | 2020-07-13 16:52:01 |
| R32.htm | 9120 | 2020-07-13 16:52:01 |
| R33.htm | 4747 | 2020-07-13 16:52:01 |
| R34.htm | 10128 | 2020-07-13 16:52:01 |
| R35.htm | 4751 | 2020-07-13 16:52:01 |
| R36.htm | 9651 | 2020-07-13 16:52:01 |
| R37.htm | 26725 | 2020-07-13 16:52:01 |
| R38.htm | 341122 | 2020-07-13 16:52:01 |
| R39.htm | 13314 | 2020-07-13 16:52:01 |
| R4.htm | 48984 | 2020-07-13 16:52:01 |
| R40.htm | 42541 | 2020-07-13 16:52:01 |
| R41.htm | 30959 | 2020-07-13 16:52:01 |
| R42.htm | 58652 | 2020-07-13 16:52:01 |
| R43.htm | 10810 | 2020-07-13 16:52:01 |
| R44.htm | 21460 | 2020-07-13 16:52:01 |
| R45.htm | 15672 | 2020-07-13 16:52:01 |
| R46.htm | 12681 | 2020-07-13 16:52:01 |
| R47.htm | 13335 | 2020-07-13 16:52:01 |
| R48.htm | 21509 | 2020-07-13 16:52:01 |
| R49.htm | 23062 | 2020-07-13 16:52:01 |
| R5.htm | 75748 | 2020-07-13 16:52:01 |
| R50.htm | 20141 | 2020-07-13 16:52:01 |
| R51.htm | 30281 | 2020-07-13 16:52:01 |
| R52.htm | 7711 | 2020-07-13 16:52:01 |
| R6.htm | 80800 | 2020-07-13 16:52:01 |
| R7.htm | 10595 | 2020-07-13 16:52:01 |
| R8.htm | 38834 | 2020-07-13 16:52:01 |
| R9.htm | 7850 | 2020-07-13 16:52:01 |
| report.css | 2768 | 2020-07-13 16:52:01 |
| Show.js | 1086 | 2020-07-13 16:52:01 |
| usau-20200430.xml | 717060 | 2020-07-13 16:52:01 |
| usau-20200430.xsd | 70654 | 2020-07-13 16:52:01 |
| usau-20200430_cal.xml | 55341 | 2020-07-13 16:52:01 |
| usau-20200430_def.xml | 240011 | 2020-07-13 16:52:01 |
| usau-20200430_lab.xml | 468324 | 2020-07-13 16:52:01 |
| usau-20200430_pre.xml | 328576 | 2020-07-13 16:52:01 |