Idaho Code § 26-210
A book shall be provided and kept by every bank in which shall be entered the names and residences of the stockholders thereof, the number of shares held by each, the time when such person became a stockholder, and also all transfers of stock, stating the time when made, the number of shares and by whom transferred. In all actions, suits and proceedings, said books shall be prima facie evidence of the facts therein stated.
The president, cashier or corporate secretary of every bank shall cause to be kept at all times in the principal place of business of the bank a full and correct list of the names and residences of all the shareholders. Such list shall be subject to the inspection of any stockholder of the bank and a stockholder may obtain a copy of such list upon paying the cost of the reproduction of the list.
Idaho Code § 26-210