Tiny swf file sizes. I add one word of text and the file jumps 1k!?!?

So im trying to keep my flash movie as small as possible. So far the movie is sitting at 10.4kb. If i go back into the fla and type ONE WORD of just plain white text -no tween, fade or anything, the movie after exported jumps to 11.5k. ??? One word typed in Flash with no tween adds a full 1k??

Is that right? I would think one word of text should be a couple of bytes.

Anyone have any suggestions?