Docker plugin [location bottom] quickpost option cuts off user audience

I love the docker plugin, however, I have it configured to be located on the bottom and when you click on the [+] quickpost option and then attempt to change the user audience (e.g. Registered Users, My Friends, etc) it cuts off the list and only the top option shows. I'm sure this is just a css issue.

Any thoughts on how to fix this? Thanks for your help!