Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000859598-19-000053-index-headers.html | 2019-07-24 16:34:22 | |
| 0000859598-19-000053-index.html | 2019-07-24 16:34:22 | |
| 0000859598-19-000053.txt | 2019-07-24 16:34:22 | |
 0000859598-19-000053-xbrl.zip | 45222 | 2019-07-24 16:34:22 |
| ckh-20190724.htm | 46250 | 2019-07-24 16:34:22 |
| ckh-20190724.xsd | 2586 | 2019-07-24 16:34:22 |
| ckh-20190724_cal.xml | 730 | 2019-07-24 16:34:22 |
| ckh-20190724_def.xml | 21327 | 2019-07-24 16:34:22 |
| ckh-20190724_htm.xml | 10786 | 2019-07-24 16:34:22 |
| ckh-20190724_lab.xml | 37601 | 2019-07-24 16:34:22 |
| ckh-20190724_pre.xml | 21848 | 2019-07-24 16:34:22 |
| exhibit99q22019earning.htm | 857558 | 2019-07-24 16:34:22 |
| FilingSummary.xml | 1728 | 2019-07-24 16:34:22 |
| Financial_Report.xlsx | 5864 | 2019-07-24 16:34:22 |
| MetaLinks.json | 26715 | 2019-07-24 16:34:22 |
 newlogo.jpg | 32852 | 2019-07-24 16:34:22 |
| R1.htm | 45188 | 2019-07-24 16:34:22 |
| report.css | 2767 | 2019-07-24 16:34:22 |
| Show.js | 1085 | 2019-07-24 16:34:22 |