Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001016178-21-000023-index-headers.html | 2021-11-15 16:02:13 | |
| 0001016178-21-000023-index.html | 2021-11-15 16:02:13 | |
| 0001016178-21-000023.txt | 2021-11-15 16:02:13 | |
 0001016178-21-000023-xbrl.zip | 350709 | 2021-11-15 16:02:13 |
| carv-20210930.htm | 2960251 | 2021-11-15 16:02:13 |
| carv-20210930.xsd | 33673 | 2021-11-15 16:02:13 |
| carv-20210930_cal.xml | 63622 | 2021-11-15 16:02:13 |
| carv-20210930_def.xml | 274912 | 2021-11-15 16:02:13 |
| carv-20210930_htm.xml | 3063176 | 2021-11-15 16:02:13 |
| carv-20210930_lab.xml | 638722 | 2021-11-15 16:02:13 |
| carv-20210930_pre.xml | 489360 | 2021-11-15 16:02:13 |
| FilingSummary.xml | 36406 | 2021-11-15 16:02:13 |
| Financial_Report.xlsx | 104390 | 2021-11-15 16:02:13 |
| MetaLinks.json | 688144 | 2021-11-15 16:02:13 |
| R1.htm | 12505 | 2021-11-15 16:02:13 |
| R10.htm | 8076 | 2021-11-15 16:02:13 |
| R11.htm | 29319 | 2021-11-15 16:02:13 |
| R12.htm | 16021 | 2021-11-15 16:02:13 |
| R13.htm | 16269 | 2021-11-15 16:02:13 |
| R14.htm | 160899 | 2021-11-15 16:02:13 |
| R15.htm | 380980 | 2021-11-15 16:02:13 |
| R16.htm | 131944 | 2021-11-15 16:02:13 |
| R17.htm | 71009 | 2021-11-15 16:02:13 |
| R18.htm | 68758 | 2021-11-15 16:02:13 |
| R19.htm | 41255 | 2021-11-15 16:02:13 |
| R2.htm | 37175 | 2021-11-15 16:02:13 |
| R20.htm | 22020 | 2021-11-15 16:02:13 |
| R21.htm | 5329 | 2021-11-15 16:02:13 |
| R22.htm | 8168 | 2021-11-15 16:02:13 |
| R23.htm | 28688 | 2021-11-15 16:02:13 |
| R24.htm | 15173 | 2021-11-15 16:02:13 |
| R25.htm | 161559 | 2021-11-15 16:02:13 |
| R26.htm | 374789 | 2021-11-15 16:02:13 |
| R27.htm | 132877 | 2021-11-15 16:02:13 |
| R28.htm | 68075 | 2021-11-15 16:02:13 |
| R29.htm | 63325 | 2021-11-15 16:02:13 |
| R3.htm | 123337 | 2021-11-15 16:02:13 |
| R30.htm | 40422 | 2021-11-15 16:02:13 |
| R31.htm | 24652 | 2021-11-15 16:02:13 |
| R32.htm | 11427 | 2021-11-15 16:02:13 |
| R33.htm | 43953 | 2021-11-15 16:02:13 |
| R34.htm | 57052 | 2021-11-15 16:02:13 |
| R35.htm | 8618 | 2021-11-15 16:02:13 |
| R36.htm | 5940 | 2021-11-15 16:02:13 |
| R37.htm | 31784 | 2021-11-15 16:02:13 |
| R38.htm | 53611 | 2021-11-15 16:02:13 |
| R39.htm | 7241 | 2021-11-15 16:02:13 |
| R4.htm | 32992 | 2021-11-15 16:02:13 |
| R40.htm | 36724 | 2021-11-15 16:02:13 |
| R41.htm | 43648 | 2021-11-15 16:02:13 |
| R42.htm | 41262 | 2021-11-15 16:02:13 |
| R43.htm | 66245 | 2021-11-15 16:02:13 |
| R44.htm | 17082 | 2021-11-15 16:02:13 |
| R45.htm | 35089 | 2021-11-15 16:02:13 |
| R46.htm | 58715 | 2021-11-15 16:02:13 |
| R47.htm | 62500 | 2021-11-15 16:02:13 |
| R48.htm | 42469 | 2021-11-15 16:02:13 |
| R49.htm | 70140 | 2021-11-15 16:02:13 |
| R5.htm | 97091 | 2021-11-15 16:02:13 |
| R50.htm | 5456 | 2021-11-15 16:02:13 |
| R51.htm | 17383 | 2021-11-15 16:02:13 |
| R52.htm | 27378 | 2021-11-15 16:02:13 |
| R53.htm | 17396 | 2021-11-15 16:02:13 |
| R54.htm | 16715 | 2021-11-15 16:02:13 |
| R55.htm | 46644 | 2021-11-15 16:02:13 |
| R56.htm | 21684 | 2021-11-15 16:02:13 |
| R57.htm | 31029 | 2021-11-15 16:02:13 |
| R58.htm | 23902 | 2021-11-15 16:02:13 |
| R59.htm | 41929 | 2021-11-15 16:02:13 |
| R6.htm | 31730 | 2021-11-15 16:02:13 |
| R60.htm | 23205 | 2021-11-15 16:02:13 |
| R61.htm | 9102 | 2021-11-15 16:02:13 |
| R7.htm | 53231 | 2021-11-15 16:02:13 |
| R8.htm | 116485 | 2021-11-15 16:02:13 |
| R9.htm | 13386 | 2021-11-15 16:02:13 |
| report.css | 2767 | 2021-11-15 16:02:13 |
| september30202110qex311.htm | 11189 | 2021-11-15 16:02:13 |
| september30202110qex312.htm | 11825 | 2021-11-15 16:02:13 |
| september30202110qex321.htm | 5416 | 2021-11-15 16:02:13 |
| september30202110qex322.htm | 5415 | 2021-11-15 16:02:13 |
| Show.js | 1085 | 2021-11-15 16:02:13 |