At the time and place specified in the notice, the commissioners shall proceed to consider the petition and all written objections to it, and shall hear all persons in relation to it, and shall hear or take testimony as may be offered or as they desire. Upon the conclusion of the hearing which may be continued from day to day, if the commissioners determine that the district ought to be dissolved and that the dissolution would be to the best interest of the district, it shall enter an order directing that the question of dissolution of the district be submitted to the qualified electors of the district at an election to be held on the date authorized in section 34-106, Idaho Code, which is not less than thirty (30) days from and after the order.