Idaho Code § 23-1035
Signs indicating that beer is sold or dispensed on any particular premises shall be displayed only on the exterior portion of the building where the licensed retailer shall carry on his business of selling beer at retail or on property on which any such building is situated and which is owned or possessed by such retailer as a part of his business premises. No more than two (2) single-faced signs or one (1) double-faced sign indicating that beer is sold or dispensed on the premises shall be displayed on such building or property. No dimension of any such sign shall exceed sixty (60) inches and the area of each face of a double-faced and of each single-faced sign shall not exceed fifteen hundred (1,500) square inches measured in such manner as the director may by regulation prescribe. No such sign shall display or make reference to the name of any brewer or the trade name, trademark or label of any brand of beer.
Idaho Code § 23-1035