Idaho Code § 23-917
No license shall be issued hereunder until on or after July 1, 1947. Within sixty (60) days after the effective date of this chapter a petition in writing signed by not less than twenty percent (20%) of the registered, qualified electors of any city may be filed with the clerk of said city as their protest against the issuance of any license in said city under the provisions of this chapter. In the event said petition is presented, the governing body of any such city shall, within five (5) days after the presentation of said petition, meet and determine the sufficiency thereof by ascertaining whether said petition is signed by the required number of registered, qualified electors of the city affected. In the event the governing body of said city determines that said petition is signed by the required percentage of registered, qualified electors, said city governing body shall forthwith make an order calling an election to be held within said city, subject to the provisions of section 34-106, Idaho Code, in accordance with the provisions of title 34, Idaho Code, which shall apply to the holding of the election provided for in this section, except where specifically modified herein. In addition to the other requirements of law, the notice of election shall notify the electors of the issue to be voted upon at said election.
Idaho Code § 23-917