The hinge into a post winds up being somewhat problematic- it's coming down in an arc, and the post wants a straight-line drop. It's do-able, but the fit is funky and can jam.
If you make an L-shaped lip on on the wall, and it's mate on the table, it should come apart and store easily. A similar setup up top with twist latches holds it in place. Here's an example of this in my last boat: