v3.25.1
Form N-1A Cover
Apr. 30, 2025
Prospectus [Line Items]  
Document Type 485BPOS
Amendment Flag false
Registrant Name Value Line Core Bond Fund
Entity Central Index Key 0000783316
Entity Investment Company Type N-1A
Document Period End Date Apr. 30, 2025
Prospectus Date May 01, 2025