S000000777 [Member] Expense Example, No Redemption - Putnam Small Cap Growth Fund - Class C shares |
Jun. 30, 2025
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 196 |
| Expense Example, No Redemption, 3 Years | 606 |
| Expense Example, No Redemption, 5 Years | 1,042 |
| Expense Example, No Redemption, 10 Years | $ 2,057 |