Idaho Code § 2-105: Constitution of trial jury.

A trial jury consists of twelve (12) men or women or both: provided, that in civil actions the jury may consist of any number less than twelve (12) upon which the parties may agree in open court: and provided, further, that in cases of misdemeanor and in civil actions involving not more than five hundred dollars ($500), exclusive of costs, the jury shall consist of not more than six (6).