v3.26.1
Expense Example, No Redemption - VALUE LINE CAPITAL APPRECIATION FUND INC
Jun. 18, 2026
USD ($)
VALUE LINE CAPITAL APPRECIATION FUND INC  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 110
Expense Example, No Redemption, 3 Years 343
Expense Example, No Redemption, 5 Years 595
Expense Example, No Redemption, 10 Years 1,317
Institutional  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 85
Expense Example, No Redemption, 3 Years 274
Expense Example, No Redemption, 5 Years 478
Expense Example, No Redemption, 10 Years $ 1,069