v3.26.1
Form N-1A Cover
Jan. 31, 2026
Prospectus [Line Items]  
Document Type 485BPOS
Amendment Flag false
Registrant Name Federated Hermes Short-Intermediate Government Trust
Entity Central Index Key 0000357159
Entity Investment Company Type N-1A
Document Period End Date Jan. 31, 2026
Prospectus Date Mar. 31, 2026