XML 25 R8.htm IDEA: XBRL DOCUMENT v3.25.3
Annual Fund Operating Expenses - SIT MID CAP GROWTH FUND INC - SIT MID CAP GROWTH FUND INC
Jun. 30, 2025
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 1.25%
Expenses (as a percentage of Assets) 1.25%