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| 0000779544-20-000039-index.html | 2020-08-11 16:09:21 | |
| 0000779544-20-000039.txt | 2020-08-11 16:09:21 | |
 0000779544-20-000039-xbrl.zip | 197061 | 2020-08-11 16:09:21 |
| a6-27x2010xq.htm | 1075617 | 2020-08-11 16:09:21 |
| ark-2020627xex311.htm | 13273 | 2020-08-11 16:09:21 |
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| ark-2020627xex32.htm | 6874 | 2020-08-11 16:09:21 |
| arkr-20200627.xml | 856887 | 2020-08-11 16:09:21 |
| arkr-20200627.xsd | 56804 | 2020-08-11 16:09:21 |
| arkr-20200627_cal.xml | 89325 | 2020-08-11 16:09:21 |
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| arkr-20200627_pre.xml | 364567 | 2020-08-11 16:09:21 |
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| Financial_Report.xlsx | 89226 | 2020-08-11 16:09:21 |
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| report.css | 2767 | 2020-08-11 16:09:21 |
| Show.js | 1085 | 2020-08-11 16:09:21 |