Idaho Code § 21-205

The owner or the operator, or either of them, of every aircraft which is operated over the lands or waters of this state shall be liable for injuries or damages to persons or property on or over the land or water beneath, caused by the ascent, descent or flight of aircraft, or the dropping or falling of any object therefrom, in accordance with the rules of law applicable to torts on land in this state. If the aircraft is leased at the time of the injury to person or property, both owner and lessee shall be thus liable, and they may be sued jointly, or either or both of them may be sued separately. The injured person, or owner or bailee of the injured property, shall have a lien on the aircraft causing the injury to the extent of the actionable damage caused by the aircraft or objects falling from it.