Idaho Code § 42-2906
Said petitioners shall, at the time of the filing of the petition, file a bond with the clerk of the district court of the county in which said proposed district is located, running to the state of Idaho, in the penal sum of $500.00, with two (2) or more sureties, to be approved by the judge of the district court, conditioned that they will pay all costs in case said district for any reason shall not be established.
In case said district be not established, then all costs and expenses shall be collectible on the bond hereinbefore provided for, and any person having a charge against said district shall have a right of action thereon: provided, that when said petition is filed with the clerk of said court no petitioner shall be allowed to withdraw his name or land therefrom without tendering into court his pro rata share of all costs and expenses incurred by petitioners to the date of said withdrawals.
Idaho Code § 42-2906