From Alice's FB page.
Important announcement - The Alice Cooper show scheduled for November 6 at the Idaho Falls Civic Auditorium in Idaho Falls, Idaho has unfortunately been CANCELED due to the failure on the part of the promoter to meet their basic contractual obligations. We are looking into a replacement show in the area but at this point it does not look possible.
Alice Cooper regrets any inconvenience this has caused his fans and looks forward to returning to Idaho in the near future.
Ticket holders can return their tickets at point of purchase for a FULL refund.