Idaho Code § 30-30-603: Number of directors.

(1) The board of directors must consist of three (3) or more individuals, with the number specified in or fixed in accordance with the articles or bylaws. Notwithstanding the foregoing, the board of directors of a religious corporation must consist of at least one (1) individual, with the number specified in or fixed in accordance with the articles or bylaws.

(2) The number of directors may be increased or decreased within the limitations contained in subsection (1) of this section from time to time by amendment to or in the manner prescribed in the articles or bylaws.