Idaho Code § 6-311D: Additional undertaking on appeal.

If judgment is rendered against the defendant for the restitution of the real property described in the complaint, or any part thereof, no appeal shall be taken by the defendant from the judgment until he gives, in addition to the undertaking now required by law upon appeal, an undertaking to the adverse party, with two (2) sureties, who shall justify in like manner as bail upon arrest, for the payment to the plaintiff, if the judgment is affirmed on appeal, of the rental value of the real property of which restitution is adjudged from the commencement of the action in which the judgment was rendered until final judgment in the action.