Idaho Code § 30-30-510: Voting entitlement generally.

(1) Unless the articles or bylaws provide otherwise, each member is entitled to one (1) vote on each matter voted on by the members, or by one (1) vote for each share of stock in a corporation that issues shares of stock instead of memberships, when authorized by the articles of incorporation of said corporation.

(2) Unless the articles or bylaws provide otherwise, if a membership stands of record in the names of two (2) or more persons, their acts with respect to voting shall have the following effect:

(a) If only one (1) votes, such act binds all; and

(b) If more than one (1) votes, the vote shall be divided on a pro rata basis.