Idaho Code § 42-2925
In case the report of the commissioners hereinbefore provided for shall not be confirmed upon the hearing of the objections and remonstrances thereto, the court or judge shall dismiss such proceedings and in such case judgment shall be rendered for the costs and expenses of said proceedings against said district, and no further proceedings shall be had or done thereon; and in that event the commissioners within thirty (30) days after such dismissal shall file with the clerk of the court a statement of all costs and expenses incurred by them which statement shall be itemized and verified by the oath of one (1) of the commissioners: provided, that in case of such dismissal the said commissioners shall have the right of appeal to the Supreme Court and such appeal shall be taken in the same manner as provided for in section 42-2924 [, Idaho Code].
Idaho Code § 42-2925