The two basic types of enrollment are MNOHS-only enrollment and supplemental ("dual") enrollment.

MNOHS-only students receive a diploma from MNOHS when they have completed their graduation requirements.

Supplemental/"dual" enrollment students attend another public school and MNOHS at the same time.  They take just 1-3 courses at MNOHS.  The course credits they earn at MNOHS apply toward their graduation requirements at their other school.