Submenu Hover Links

I am trying to change the submenu hover links. I know you can adjust a few things with the advanced editor… however I want to do something you can’t do in the advanced editor. Here is a screenshot of what I am trying to do. When you mouseover the submenu items, I want to add the arrow → after the text. Just on hover state.

Screenshot: http://coldspringdesign.com/clients/folks/wpinhere/wp-content/themes/enfold-child/topic-menu-hover.png

Here is a link to the site I am working on : http://www.coldspringdesign.com/clients/folks/wpinhere/

I should be able to add the arrow with the css content definition? Any help would be appreciated.