No act, order or proceeding of the tax commission shall be valid until after the time allowed for taking such court action has expired or such court action is finally determined. As used in this section, the term "amount asserted" shall mean the total amount due, as set forth in the decision of the state tax commission.
the court, in its discretion, may require the party which did not prevail to pay to the prevailing party costs, expenses and attorney's fees.
Idaho Code § 63-3049