Idaho Code § 22-2623
Any corporation or association organized under previously existing statutes, may by a majority vote of its stockholders or members be brought under the provisions of this chapter by limiting its membership and adopting the other restrictions as provided herein. It shall make out in duplicate a statement signed and sworn to by its directors, upon forms supplied by the corporation commissioner, to the effect that the corporation or association has by a majority vote of its stockholders or members decided to accept the benefits and be bound by the provisions of this chapter. Articles of incorporation shall be filed as required in section 22-2608, except that they shall be signed by the members of the board of directors. The filing fee shall be the same as for filing an amendment to articles of incorporation.
Idaho Code § 22-2623