Idaho Code § 33-3808

The bonds bearing the signatures of officers in office on the date of the signing thereof shall be valid and binding obligations, notwithstanding that before the delivery thereof and payment therefor any or all the persons whose signatures appear thereon shall have ceased to be officers of the institution issuing the same. The validity of the bonds shall not be dependent on nor affected by the validity or regularity of any proceedings to acquire the project financed by the bonds or taken in connection therewith.