Jerusalem Artichoke question

So, my mom wanted to plant Jerusalem artichoke. I did. I know nothing about this plant at all. I left it in the planter until the tops pretty much died. The container it was in, I decided to clean out and use it as a new worm composter. There were a bunch of little Jerusalem artichoke tubers. Tiny, in some cases. What the heck can I do with these. Should I try replanting them? Can we eat these tiny things?