Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001016178-21-000007-index-headers.html | 2021-02-16 16:53:12 | |
| 0001016178-21-000007-index.html | 2021-02-16 16:53:12 | |
| 0001016178-21-000007.txt | 2021-02-16 16:53:12 | |
 0001016178-21-000007-xbrl.zip | 360208 | 2021-02-16 16:53:12 |
| carv-20201231.htm | 2971945 | 2021-02-16 16:53:12 |
| carv-20201231.xsd | 34369 | 2021-02-16 16:53:12 |
| carv-20201231_cal.xml | 80483 | 2021-02-16 16:53:12 |
| carv-20201231_def.xml | 290859 | 2021-02-16 16:53:12 |
| carv-20201231_htm.xml | 3103909 | 2021-02-16 16:53:12 |
| carv-20201231_lab.xml | 652495 | 2021-02-16 16:53:12 |
| carv-20201231_pre.xml | 500502 | 2021-02-16 16:53:12 |
| december31202010qex311.htm | 11199 | 2021-02-16 16:53:12 |
| december31202010qex312.htm | 11825 | 2021-02-16 16:53:12 |
| december31202010qex321.htm | 5329 | 2021-02-16 16:53:12 |
| december31202010qex322.htm | 5382 | 2021-02-16 16:53:12 |
| FilingSummary.xml | 37750 | 2021-02-16 16:53:12 |
| Financial_Report.xlsx | 107405 | 2021-02-16 16:53:12 |
| MetaLinks.json | 667600 | 2021-02-16 16:53:12 |
| R1.htm | 23911 | 2021-02-16 16:53:12 |
| R10.htm | 7807 | 2021-02-16 16:53:12 |
| R11.htm | 22344 | 2021-02-16 16:53:12 |
| R12.htm | 8491 | 2021-02-16 16:53:12 |
| R13.htm | 15818 | 2021-02-16 16:53:12 |
| R14.htm | 175647 | 2021-02-16 16:53:12 |
| R15.htm | 391611 | 2021-02-16 16:53:12 |
| R16.htm | 127640 | 2021-02-16 16:53:12 |
| R17.htm | 72848 | 2021-02-16 16:53:12 |
| R18.htm | 71446 | 2021-02-16 16:53:12 |
| R19.htm | 41158 | 2021-02-16 16:53:12 |
| R2.htm | 27393 | 2021-02-16 16:53:12 |
| R20.htm | 25870 | 2021-02-16 16:53:12 |
| R21.htm | 7337 | 2021-02-16 16:53:12 |
| R22.htm | 8171 | 2021-02-16 16:53:12 |
| R23.htm | 21715 | 2021-02-16 16:53:12 |
| R24.htm | 14722 | 2021-02-16 16:53:12 |
| R25.htm | 176493 | 2021-02-16 16:53:12 |
| R26.htm | 387233 | 2021-02-16 16:53:12 |
| R27.htm | 128275 | 2021-02-16 16:53:12 |
| R28.htm | 69914 | 2021-02-16 16:53:12 |
| R29.htm | 66064 | 2021-02-16 16:53:12 |
| R3.htm | 108602 | 2021-02-16 16:53:12 |
| R30.htm | 40219 | 2021-02-16 16:53:12 |
| R31.htm | 24671 | 2021-02-16 16:53:12 |
| R32.htm | 11427 | 2021-02-16 16:53:12 |
| R33.htm | 28460 | 2021-02-16 16:53:12 |
| R34.htm | 31517 | 2021-02-16 16:53:12 |
| R35.htm | 11751 | 2021-02-16 16:53:12 |
| R36.htm | 5940 | 2021-02-16 16:53:12 |
| R37.htm | 27906 | 2021-02-16 16:53:12 |
| R38.htm | 54840 | 2021-02-16 16:53:12 |
| R39.htm | 8636 | 2021-02-16 16:53:12 |
| R4.htm | 25156 | 2021-02-16 16:53:12 |
| R40.htm | 55636 | 2021-02-16 16:53:12 |
| R41.htm | 56452 | 2021-02-16 16:53:12 |
| R42.htm | 41190 | 2021-02-16 16:53:12 |
| R43.htm | 66242 | 2021-02-16 16:53:12 |
| R44.htm | 16706 | 2021-02-16 16:53:12 |
| R45.htm | 35078 | 2021-02-16 16:53:12 |
| R46.htm | 48064 | 2021-02-16 16:53:12 |
| R47.htm | 62510 | 2021-02-16 16:53:12 |
| R48.htm | 51849 | 2021-02-16 16:53:12 |
| R49.htm | 11810 | 2021-02-16 16:53:12 |
| R5.htm | 92627 | 2021-02-16 16:53:12 |
| R50.htm | 70149 | 2021-02-16 16:53:12 |
| R51.htm | 5658 | 2021-02-16 16:53:12 |
| R52.htm | 17380 | 2021-02-16 16:53:12 |
| R53.htm | 27378 | 2021-02-16 16:53:12 |
| R54.htm | 17399 | 2021-02-16 16:53:12 |
| R55.htm | 16718 | 2021-02-16 16:53:12 |
| R56.htm | 49634 | 2021-02-16 16:53:12 |
| R57.htm | 21666 | 2021-02-16 16:53:12 |
| R58.htm | 35196 | 2021-02-16 16:53:12 |
| R59.htm | 23890 | 2021-02-16 16:53:12 |
| R6.htm | 27932 | 2021-02-16 16:53:12 |
| R60.htm | 42837 | 2021-02-16 16:53:12 |
| R61.htm | 19068 | 2021-02-16 16:53:12 |
| R62.htm | 10227 | 2021-02-16 16:53:12 |
| R63.htm | 23743 | 2021-02-16 16:53:12 |
| R7.htm | 44428 | 2021-02-16 16:53:12 |
| R8.htm | 102852 | 2021-02-16 16:53:12 |
| R9.htm | 13033 | 2021-02-16 16:53:12 |
| report.css | 2767 | 2021-02-16 16:53:12 |
| Show.js | 1085 | 2021-02-16 16:53:12 |