Idaho Code § 30-29-741: STANDING.

A shareholder may not commence or maintain a derivative proceeding unless the shareholder:

(a) Was a shareholder of the corporation at the time of the act or omission complained of or became a shareholder through transfer by operation of law from one (1) who was a shareholder at that time; and

(b) Fairly and adequately represents the interests of the corporation in enforcing the right of the corporation.