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|---|---|---|
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| 0000950170-23-018099-index.html | 2023-05-05 08:52:02 | |
| 0000950170-23-018099.txt | 2023-05-05 08:52:02 | |
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| bchg-20230331.htm | 1383311 | 2023-05-05 08:52:02 |
| bchg-20230331.xsd | 26164 | 2023-05-05 08:52:02 |
| bchg-20230331_cal.xml | 12755 | 2023-05-05 08:52:02 |
| bchg-20230331_def.xml | 31574 | 2023-05-05 08:52:02 |
| bchg-20230331_htm.xml | 657169 | 2023-05-05 08:52:02 |
| bchg-20230331_lab.xml | 150026 | 2023-05-05 08:52:02 |
| bchg-20230331_pre.xml | 104486 | 2023-05-05 08:52:02 |
| bchg-ex31_1.htm | 28931 | 2023-05-05 08:52:02 |
| bchg-ex31_2.htm | 29218 | 2023-05-05 08:52:02 |
| bchg-ex32_1.htm | 8963 | 2023-05-05 08:52:02 |
| bchg-ex32_2.htm | 8981 | 2023-05-05 08:52:02 |
| FilingSummary.xml | 19061 | 2023-05-05 08:52:02 |
| Financial_Report.xlsx | 46690 | 2023-05-05 08:52:02 |
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| MetaLinks.json | 246135 | 2023-05-05 08:52:02 |
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| R2.htm | 43726 | 2023-05-05 08:52:02 |
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| R27.htm | 36680 | 2023-05-05 08:52:02 |
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| R3.htm | 4283 | 2023-05-05 08:52:02 |
| R4.htm | 13829 | 2023-05-05 08:52:02 |
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| R8.htm | 73236 | 2023-05-05 08:52:02 |
| R9.htm | 60832 | 2023-05-05 08:52:02 |
| report.css | 2767 | 2023-05-05 08:52:02 |
| Show.js | 1085 | 2023-05-05 08:52:02 |