Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001628280-22-013029-index-headers.html | 2022-05-06 15:59:31 | |
| 0001628280-22-013029-index.html | 2022-05-06 15:59:31 | |
| 0001628280-22-013029.txt | 2022-05-06 15:59:31 | |
 0001628280-22-013029-xbrl.zip | 290099 | 2022-05-06 15:59:31 |
| art-20220331.htm | 1872186 | 2022-05-06 15:59:31 |
| art-20220331.xsd | 47653 | 2022-05-06 15:59:31 |
| art-20220331_cal.xml | 74071 | 2022-05-06 15:59:31 |
| art-20220331_def.xml | 273309 | 2022-05-06 15:59:31 |
| art-20220331_htm.xml | 1344881 | 2022-05-06 15:59:31 |
| art-20220331_lab.xml | 595627 | 2022-05-06 15:59:31 |
| art-20220331_pre.xml | 395843 | 2022-05-06 15:59:31 |
| exhibit311q122.htm | 8666 | 2022-05-06 15:59:31 |
| exhibit312q122.htm | 8434 | 2022-05-06 15:59:31 |
| exhibit321q122.htm | 4577 | 2022-05-06 15:59:31 |
| exhibit322q122.htm | 4574 | 2022-05-06 15:59:31 |
| FilingSummary.xml | 29694 | 2022-05-06 15:59:31 |
| Financial_Report.xlsx | 83552 | 2022-05-06 15:59:31 |
| MetaLinks.json | 594614 | 2022-05-06 15:59:31 |
| R1.htm | 53962 | 2022-05-06 15:59:31 |
| R10.htm | 18776 | 2022-05-06 15:59:31 |
| R11.htm | 83885 | 2022-05-06 15:59:31 |
| R12.htm | 24012 | 2022-05-06 15:59:31 |
| R13.htm | 83848 | 2022-05-06 15:59:31 |
| R14.htm | 19707 | 2022-05-06 15:59:31 |
| R15.htm | 30049 | 2022-05-06 15:59:31 |
| R16.htm | 50943 | 2022-05-06 15:59:31 |
| R17.htm | 22858 | 2022-05-06 15:59:31 |
| R18.htm | 59071 | 2022-05-06 15:59:31 |
| R19.htm | 17828 | 2022-05-06 15:59:31 |
| R2.htm | 135735 | 2022-05-06 15:59:31 |
| R20.htm | 15873 | 2022-05-06 15:59:31 |
| R21.htm | 76403 | 2022-05-06 15:59:31 |
| R22.htm | 17550 | 2022-05-06 15:59:31 |
| R23.htm | 75015 | 2022-05-06 15:59:31 |
| R24.htm | 29039 | 2022-05-06 15:59:31 |
| R25.htm | 45461 | 2022-05-06 15:59:31 |
| R26.htm | 21942 | 2022-05-06 15:59:31 |
| R27.htm | 50770 | 2022-05-06 15:59:31 |
| R28.htm | 4923 | 2022-05-06 15:59:31 |
| R29.htm | 7439 | 2022-05-06 15:59:31 |
| R3.htm | 16643 | 2022-05-06 15:59:31 |
| R30.htm | 13312 | 2022-05-06 15:59:31 |
| R31.htm | 129440 | 2022-05-06 15:59:31 |
| R32.htm | 11219 | 2022-05-06 15:59:31 |
| R33.htm | 14967 | 2022-05-06 15:59:31 |
| R34.htm | 98309 | 2022-05-06 15:59:31 |
| R35.htm | 15208 | 2022-05-06 15:59:31 |
| R36.htm | 53705 | 2022-05-06 15:59:31 |
| R37.htm | 15105 | 2022-05-06 15:59:31 |
| R38.htm | 29815 | 2022-05-06 15:59:31 |
| R39.htm | 36045 | 2022-05-06 15:59:31 |
| R4.htm | 110973 | 2022-05-06 15:59:31 |
| R40.htm | 9219 | 2022-05-06 15:59:31 |
| R41.htm | 45100 | 2022-05-06 15:59:31 |
| R42.htm | 50167 | 2022-05-06 15:59:31 |
| R43.htm | 29741 | 2022-05-06 15:59:31 |
| R44.htm | 12748 | 2022-05-06 15:59:31 |
| R45.htm | 14932 | 2022-05-06 15:59:31 |
| R46.htm | 56997 | 2022-05-06 15:59:31 |
| R47.htm | 11325 | 2022-05-06 15:59:31 |
| R48.htm | 10703 | 2022-05-06 15:59:31 |
| R49.htm | 9229 | 2022-05-06 15:59:31 |
| R5.htm | 35789 | 2022-05-06 15:59:31 |
| R6.htm | 54647 | 2022-05-06 15:59:31 |
| R7.htm | 108082 | 2022-05-06 15:59:31 |
| R8.htm | 15996 | 2022-05-06 15:59:31 |
| R9.htm | 5690 | 2022-05-06 15:59:31 |
| report.css | 2767 | 2022-05-06 15:59:31 |
| Show.js | 1085 | 2022-05-06 15:59:31 |