Annual Fund Operating Expenses - BERKSHIRE FUNDS - Berkshire Focus Fund Shares |
May 01, 2026 |
|---|---|
| Prospectus [Line Items] | |
| Management Fees (as a percentage of Assets) | 1.50% |
| Other Expenses (as a percentage of Assets): | 0.45% |
| Expenses (as a percentage of Assets) | 1.95% |