Idaho Stautes 18-3302 (12) The requirement to secure a license to carry a concealed weapon under this section shall not apply to the following persons:
(g) Any person who has a valid permit from a state or local law enforcement agency or court authorizing him to carry a concealed weapon. A permit issued in another state will only be considered valid if the permit is in the licensee's physical possession.
While I can't quote the actual case law, this has meant resident license holders, as well as non-resident or other out of State license/permits.
There is no statutory duty to inform.