Recommend a good document scanner for the rv

Hello! It seems I am in need of another appliance! I need to get a document scanner for the RV. Being Full-Time RVers, we have drastically cut down on the amount of paperwork we carry. However, we'd like to par down even more. We need to get a good document scanner to scan up anything that we deem important enough to keep a copy of. So, it needs to be small enough to carry around in the RV - however, it needs to create a really good quality copy PLUS we are getting rid of any extra storage we have outside of the RV so I have a bunch of paperwork in file cabinets that I need to scan up so I need something that will stand up to that test. Something that I could insert multiple pieces of paper in and that could scan front and back at the same time maybe. Any suggestions?