Shareholder Report, Average Annual Return (Details) |
6 Months Ended | 12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2025 |
Jun. 30, 2025 |
Jun. 30, 2025 |
|
| Monetta Fund | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Monetta Fund | |||
| Average Annual Return, Percent | 29.71% | 16.25% | 12.92% | |
| Monetta Young Investor Growth Fund | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Monetta Young Investor Growth Fund | |||
| Average Annual Return, Percent | 15.39% | 14.81% | 12.77% | |
| S&P 500 Index [Member] | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | S&P 500 Index | |||
| Average Annual Return, Percent | 15.16% | 16.64% | 13.65% | |
| S&P 500 Index [Member] | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | S&P 500 Index | |||
| Average Annual Return, Percent | 15.16% | 16.64% | 13.65% |