Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-22-002867-index-headers.html | 2022-03-04 08:44:04 | |
| 0000950170-22-002867-index.html | 2022-03-04 08:44:04 | |
| 0000950170-22-002867.txt | 2022-03-04 08:44:04 | |
 0000950170-22-002867-xbrl.zip | 12565 | 2022-03-04 08:44:04 |
| bchg-20220302.htm | 53478 | 2022-03-04 08:44:04 |
| bchg-20220302.xsd | 2486 | 2022-03-04 08:44:04 |
| bchg-20220302_htm.xml | 5106 | 2022-03-04 08:44:04 |
| bchg-20220302_lab.xml | 14668 | 2022-03-04 08:44:04 |
| bchg-20220302_pre.xml | 10775 | 2022-03-04 08:44:04 |
| bchg-ex99_1.htm | 15149 | 2022-03-04 08:44:04 |
| FilingSummary.xml | 1740 | 2022-03-04 08:44:04 |
| Financial_Report.xlsx | 5768 | 2022-03-04 08:44:04 |
| MetaLinks.json | 18846 | 2022-03-04 08:44:04 |
| R1.htm | 43519 | 2022-03-04 08:44:04 |
| report.css | 2767 | 2022-03-04 08:44:04 |
| Show.js | 1084 | 2022-03-04 08:44:04 |