Renado Parker had 11 points and Nate Lozeau 10 for the Vikings (12-12, 6-6 Big Sky), who shot 1 of 14 from 3-point range but made up for it at the free-throw line, going 20 for 25.
Idaho State trailed 29-20 at the break and got no closer than seven points in the second half.
Abner Moreira added 11 points and 10 rebounds for the Bengals.
- Idaho State
- Portland State