Idaho Code § 43-2405: Hearing of petition.

The board of directors, at the time mentioned in such notice, or at such other time to which the hearing may be adjourned, shall hear the petition and all objections thereto, showing cause as aforesaid. The failure of any person to show cause as aforesaid shall be taken as an assent on his part to such domestic annexation as to the lands mentioned in the petition, or such part thereof as the board of directors shall determine.