Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-22-018865-index-headers.html | 2022-09-27 08:01:41 | |
| 0000950170-22-018865-index.html | 2022-09-27 08:01:41 | |
| 0000950170-22-018865.txt | 2022-09-27 08:01:41 | |
 0000950170-22-018865-xbrl.zip | 783125 | 2022-09-27 08:01:41 |
| FilingSummary.xml | 41818 | 2022-09-27 08:01:41 |
| Financial_Report.xlsx | 122714 | 2022-09-27 08:01:41 |
 img138742198_0.jpg | 158212 | 2022-09-27 08:01:41 |
 img138742198_1.jpg | 40295 | 2022-09-27 08:01:41 |
 img138742198_2.jpg | 137258 | 2022-09-27 08:01:41 |
 img138742198_3.jpg | 86852 | 2022-09-27 08:01:41 |
 img138742198_4.jpg | 82960 | 2022-09-27 08:01:41 |
| ktra-20220630.htm | 4905896 | 2022-09-27 08:01:41 |
| ktra-20220630.xsd | 101989 | 2022-09-27 08:01:41 |
| ktra-20220630_cal.xml | 40435 | 2022-09-27 08:01:41 |
| ktra-20220630_def.xml | 384621 | 2022-09-27 08:01:41 |
| ktra-20220630_htm.xml | 2847390 | 2022-09-27 08:01:41 |
| ktra-20220630_lab.xml | 688120 | 2022-09-27 08:01:41 |
| ktra-20220630_pre.xml | 531943 | 2022-09-27 08:01:41 |
| ktra-ex10_33.htm | 16089 | 2022-09-27 08:01:41 |
| ktra-ex21_1.htm | 3096 | 2022-09-27 08:01:41 |
| ktra-ex23_1.htm | 6080 | 2022-09-27 08:01:41 |
| ktra-ex31_1.htm | 21753 | 2022-09-27 08:01:41 |
| ktra-ex31_2.htm | 21459 | 2022-09-27 08:01:41 |
| ktra-ex32_1.htm | 12677 | 2022-09-27 08:01:41 |
| ktra-ex32_2.htm | 12677 | 2022-09-27 08:01:41 |
| MetaLinks.json | 809285 | 2022-09-27 08:01:41 |
| R1.htm | 69619 | 2022-09-27 08:01:41 |
| R10.htm | 7780 | 2022-09-27 08:01:41 |
| R11.htm | 29364 | 2022-09-27 08:01:41 |
| R12.htm | 15362 | 2022-09-27 08:01:41 |
| R13.htm | 36468 | 2022-09-27 08:01:41 |
| R14.htm | 774757 | 2022-09-27 08:01:41 |
| R15.htm | 134198 | 2022-09-27 08:01:41 |
| R16.htm | 12635 | 2022-09-27 08:01:41 |
| R17.htm | 49455 | 2022-09-27 08:01:41 |
| R18.htm | 46462 | 2022-09-27 08:01:41 |
| R19.htm | 30291 | 2022-09-27 08:01:41 |
| R2.htm | 85312 | 2022-09-27 08:01:41 |
| R20.htm | 83166 | 2022-09-27 08:01:41 |
| R21.htm | 55737 | 2022-09-27 08:01:41 |
| R22.htm | 25866 | 2022-09-27 08:01:41 |
| R23.htm | 22999 | 2022-09-27 08:01:41 |
| R24.htm | 707095 | 2022-09-27 08:01:41 |
| R25.htm | 115629 | 2022-09-27 08:01:41 |
| R26.htm | 47932 | 2022-09-27 08:01:41 |
| R27.htm | 34916 | 2022-09-27 08:01:41 |
| R28.htm | 35954 | 2022-09-27 08:01:41 |
| R29.htm | 23743 | 2022-09-27 08:01:41 |
| R3.htm | 19017 | 2022-09-27 08:01:41 |
| R30.htm | 42118 | 2022-09-27 08:01:41 |
| R31.htm | 23685 | 2022-09-27 08:01:41 |
| R32.htm | 7541 | 2022-09-27 08:01:41 |
| R33.htm | 5594 | 2022-09-27 08:01:41 |
| R34.htm | 14081 | 2022-09-27 08:01:41 |
| R35.htm | 6761 | 2022-09-27 08:01:41 |
| R36.htm | 22876 | 2022-09-27 08:01:41 |
| R37.htm | 14714 | 2022-09-27 08:01:41 |
| R38.htm | 35362 | 2022-09-27 08:01:41 |
| R39.htm | 22314 | 2022-09-27 08:01:41 |
| R4.htm | 61663 | 2022-09-27 08:01:41 |
| R40.htm | 318901 | 2022-09-27 08:01:41 |
| R41.htm | 26855 | 2022-09-27 08:01:41 |
| R42.htm | 14774 | 2022-09-27 08:01:41 |
| R43.htm | 29256 | 2022-09-27 08:01:41 |
| R44.htm | 79038 | 2022-09-27 08:01:41 |
| R45.htm | 14643 | 2022-09-27 08:01:41 |
| R46.htm | 9017 | 2022-09-27 08:01:41 |
| R47.htm | 20218 | 2022-09-27 08:01:41 |
| R48.htm | 56473 | 2022-09-27 08:01:41 |
| R49.htm | 17882 | 2022-09-27 08:01:41 |
| R5.htm | 78110 | 2022-09-27 08:01:41 |
| R50.htm | 63557 | 2022-09-27 08:01:41 |
| R51.htm | 19764 | 2022-09-27 08:01:41 |
| R52.htm | 18532 | 2022-09-27 08:01:41 |
| R53.htm | 26998 | 2022-09-27 08:01:41 |
| R54.htm | 37805 | 2022-09-27 08:01:41 |
| R55.htm | 19762 | 2022-09-27 08:01:41 |
| R56.htm | 16523 | 2022-09-27 08:01:41 |
| R57.htm | 21388 | 2022-09-27 08:01:41 |
| R58.htm | 26593 | 2022-09-27 08:01:41 |
| R59.htm | 10630 | 2022-09-27 08:01:41 |
| R6.htm | 77392 | 2022-09-27 08:01:41 |
| R60.htm | 8634 | 2022-09-27 08:01:41 |
| R61.htm | 73524 | 2022-09-27 08:01:41 |
| R7.htm | 22021 | 2022-09-27 08:01:41 |
| R8.htm | 48887 | 2022-09-27 08:01:41 |
| R9.htm | 78171 | 2022-09-27 08:01:41 |
| report.css | 2767 | 2022-09-27 08:01:41 |
| Show.js | 1085 | 2022-09-27 08:01:41 |