Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001628280-20-007219-index-headers.html | 2020-05-08 16:19:51 | |
| 0001628280-20-007219-index.html | 2020-05-08 16:19:51 | |
| 0001628280-20-007219.txt | 2020-05-08 16:19:51 | |
 0001628280-20-007219-xbrl.zip | 441968 | 2020-05-08 16:19:51 |
| a2020331artandsubsq1.htm | 2881671 | 2020-05-08 16:19:51 |
| a2020331artandsubsq1_htm.xml | 2469954 | 2020-05-08 16:19:51 |
| art-20200331.xsd | 98899 | 2020-05-08 16:19:51 |
| art-20200331_cal.xml | 158031 | 2020-05-08 16:19:51 |
| art-20200331_def.xml | 593849 | 2020-05-08 16:19:51 |
| art-20200331_lab.xml | 1163887 | 2020-05-08 16:19:51 |
| art-20200331_pre.xml | 726940 | 2020-05-08 16:19:51 |
| exhibit311q120.htm | 8865 | 2020-05-08 16:19:51 |
| exhibit312q120.htm | 8875 | 2020-05-08 16:19:51 |
| exhibit321q120.htm | 5630 | 2020-05-08 16:19:51 |
| exhibit322q120.htm | 5586 | 2020-05-08 16:19:51 |
| exhibit951q12020.htm | 37053 | 2020-05-08 16:19:51 |
| FilingSummary.xml | 51657 | 2020-05-08 16:19:51 |
| Financial_Report.xlsx | 132720 | 2020-05-08 16:19:51 |
| MetaLinks.json | 900963 | 2020-05-08 16:19:51 |
| R1.htm | 53858 | 2020-05-08 16:19:51 |
| R10.htm | 82543 | 2020-05-08 16:19:51 |
| R11.htm | 10861 | 2020-05-08 16:19:51 |
| R12.htm | 25765 | 2020-05-08 16:19:51 |
| R13.htm | 119772 | 2020-05-08 16:19:51 |
| R14.htm | 132020 | 2020-05-08 16:19:51 |
| R15.htm | 15552 | 2020-05-08 16:19:51 |
| R16.htm | 30835 | 2020-05-08 16:19:51 |
| R17.htm | 37722 | 2020-05-08 16:19:51 |
| R18.htm | 90219 | 2020-05-08 16:19:51 |
| R19.htm | 12366 | 2020-05-08 16:19:51 |
| R2.htm | 97958 | 2020-05-08 16:19:51 |
| R20.htm | 10657 | 2020-05-08 16:19:51 |
| R21.htm | 49454 | 2020-05-08 16:19:51 |
| R22.htm | 24141 | 2020-05-08 16:19:51 |
| R23.htm | 48717 | 2020-05-08 16:19:51 |
| R24.htm | 70346 | 2020-05-08 16:19:51 |
| R25.htm | 25510 | 2020-05-08 16:19:51 |
| R26.htm | 77275 | 2020-05-08 16:19:51 |
| R27.htm | 8371 | 2020-05-08 16:19:51 |
| R28.htm | 48968 | 2020-05-08 16:19:51 |
| R29.htm | 73137 | 2020-05-08 16:19:51 |
| R3.htm | 15994 | 2020-05-08 16:19:51 |
| R30.htm | 9089 | 2020-05-08 16:19:51 |
| R31.htm | 20832 | 2020-05-08 16:19:51 |
| R32.htm | 88390 | 2020-05-08 16:19:51 |
| R33.htm | 119876 | 2020-05-08 16:19:51 |
| R34.htm | 16124 | 2020-05-08 16:19:51 |
| R35.htm | 25322 | 2020-05-08 16:19:51 |
| R36.htm | 35085 | 2020-05-08 16:19:51 |
| R37.htm | 74679 | 2020-05-08 16:19:51 |
| R38.htm | 47842 | 2020-05-08 16:19:51 |
| R39.htm | 48127 | 2020-05-08 16:19:51 |
| R4.htm | 84007 | 2020-05-08 16:19:51 |
| R40.htm | 64034 | 2020-05-08 16:19:51 |
| R41.htm | 24951 | 2020-05-08 16:19:51 |
| R42.htm | 68248 | 2020-05-08 16:19:51 |
| R43.htm | 106292 | 2020-05-08 16:19:51 |
| R44.htm | 48251 | 2020-05-08 16:19:51 |
| R45.htm | 50858 | 2020-05-08 16:19:51 |
| R46.htm | 96769 | 2020-05-08 16:19:51 |
| R47.htm | 15086 | 2020-05-08 16:19:51 |
| R48.htm | 13644 | 2020-05-08 16:19:51 |
| R49.htm | 10091 | 2020-05-08 16:19:51 |
| R5.htm | 21691 | 2020-05-08 16:19:51 |
| R50.htm | 16385 | 2020-05-08 16:19:51 |
| R51.htm | 11219 | 2020-05-08 16:19:51 |
| R52.htm | 125567 | 2020-05-08 16:19:51 |
| R53.htm | 183529 | 2020-05-08 16:19:51 |
| R54.htm | 22263 | 2020-05-08 16:19:51 |
| R55.htm | 65207 | 2020-05-08 16:19:51 |
| R56.htm | 16065 | 2020-05-08 16:19:51 |
| R57.htm | 21018 | 2020-05-08 16:19:51 |
| R58.htm | 36452 | 2020-05-08 16:19:51 |
| R59.htm | 17455 | 2020-05-08 16:19:51 |
| R6.htm | 46120 | 2020-05-08 16:19:51 |
| R60.htm | 22275 | 2020-05-08 16:19:51 |
| R61.htm | 23212 | 2020-05-08 16:19:51 |
| R62.htm | 88106 | 2020-05-08 16:19:51 |
| R63.htm | 18337 | 2020-05-08 16:19:51 |
| R64.htm | 41366 | 2020-05-08 16:19:51 |
| R65.htm | 13716 | 2020-05-08 16:19:51 |
| R66.htm | 19591 | 2020-05-08 16:19:51 |
| R67.htm | 35916 | 2020-05-08 16:19:51 |
| R68.htm | 32790 | 2020-05-08 16:19:51 |
| R69.htm | 10478 | 2020-05-08 16:19:51 |
| R7.htm | 177981 | 2020-05-08 16:19:51 |
| R70.htm | 34439 | 2020-05-08 16:19:51 |
| R71.htm | 9319 | 2020-05-08 16:19:51 |
| R72.htm | 27677 | 2020-05-08 16:19:51 |
| R73.htm | 49564 | 2020-05-08 16:19:51 |
| R74.htm | 76174 | 2020-05-08 16:19:51 |
| R75.htm | 9436 | 2020-05-08 16:19:51 |
| R76.htm | 12108 | 2020-05-08 16:19:51 |
| R77.htm | 14910 | 2020-05-08 16:19:51 |
| R78.htm | 59679 | 2020-05-08 16:19:51 |
| R79.htm | 11308 | 2020-05-08 16:19:51 |
| R8.htm | 31044 | 2020-05-08 16:19:51 |
| R80.htm | 11028 | 2020-05-08 16:19:51 |
| R81.htm | 9722 | 2020-05-08 16:19:51 |
| R82.htm | 13236 | 2020-05-08 16:19:51 |
| R9.htm | 29540 | 2020-05-08 16:19:51 |
| R9999.htm | 4622 | 2020-05-08 16:19:51 |
| report.css | 2767 | 2020-05-08 16:19:51 |
| Show.js | 1085 | 2020-05-08 16:19:51 |