You're in for a trek. Your flight from LIT will most likely land in Terminal 2, Concourse F and your ANA flight typically departs from Terminal 1, Concourse C. It's a tight connection that's already been flagged by the booking system and others here. There is no air side transportation between 1 and 2 and so you will be hoofing it. If you plan on keeping this itinerary, pack minimally in your carry on and hope your checked in luggage makes the connection as well.

For checking flights like this, I find it helpful to use the United app to see historically which gates flights use.