Idaho Code § 58-301
The board may cause all lands belonging to the state to be appraised, at such times, in such manner and by such means as the board shall decide, and may require the actual cost of an appraisal to be collected from the purchaser at the time of the sale, in addition to the sum bid for the land. All appraisements are under the control of the board, which may approve or disapprove of the same, in whole or in part, and may, at any time, direct a reappraisement or new appraisement to be made: provided further, that the board may require the person or persons seeking such land to be appraised to pay such fee in advance; and when the land shall be thereafter sold, if the purchaser be other than the party seeking such appraisement the sum or sums or the due proportion thereof so advanced by the party seeking such appraisement shall be returned to the party paying the same.
Idaho Code § 58-301