Idaho Code § 19-4702

Whenever any money shall be or shall come into the possession of any clerk of court, or other public officer authorized to receive the same, and no fund is specified by law into which such money shall be paid, or purpose to which the same shall be applied, the officer in possession of, or who may come into the possession of any money in such cases, shall pay the same to the state treasurer, who shall add the same to the permanent school fund [public school permanent endowment fund], and such money shall thereafter be and remain a part of said fund.