jquery ui resizable prevent height smaller than text

I have resizable DIV with text. I operate only on width, the height should auto size but not smaller than text (content). How to do it?

My code:

HTML:

<div id="block">
  sadfasda asfasfasf asfafafaf a a a fasfas fasfafasfaf
  asffasdf as fasfasfa sfasfafasfaf akflj jalj faldjfajf'a
  klasdjf lka;sjfajf ljasfljaflkj f jf  f jfaj flajklfjalfj
  klasjf  f lkajfajf lajf lajf al alfjasl jall fafasff
</div>

CSS:

#block {border: 1px solid red; width: 300px; height: auto; padding: 5px}

JS:

$("#block").resizable({
    maxWidth: 500,
    minWidth: 115
});

Here the DEMO