v3.26.1
Average Annual Total Returns
12 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Value Line Small Cap Opportunities Fund, Inc.      
Prospectus [Line Items]      
Average Annual Return, Percent 6.35% 6.67% 10.86%
Value Line Small Cap Opportunities Fund, Inc. | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 4.84% 5.89% 9.15%
Value Line Small Cap Opportunities Fund, Inc. | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 4.85% 5.15% 8.47%
Institutional      
Prospectus [Line Items]      
Average Annual Return, Percent 6.61% 6.93% 11.40%
Russell 2000 Index (Reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 12.81% 6.09% 9.62%