Idaho Code § 52-405
A copy of the complaint, together with a notice of the time and place of the hearing of the application for a temporary injunction, shall be served upon the defendant at least five (5) days before such hearing. The place may also be served by posting such papers in the same manner as is provided for in section 52-404, Idaho Code, in the case of a restraining order. If the hearing is then continued at the instance of any defendant, the temporary writ as prayed shall be granted as a matter of course.
Before or after the commencement of the hearing of an application for a temporary injunction, the court, on application of either of the parties or on its own motion, may order the trial of the action on the merits to be advanced and consolidated with the hearing on the application for the temporary injunction. Any evidence received upon an application for a temporary injunction which would be admissible upon the trial on the merits becomes a part of the record of the trial and need not be repeated as to such parties at the trial on the merits.
Idaho Code § 52-405