That's not a "balance". That's a transaction.
It indicates that 0.0001 was "subtracted from" whatever your balance was. Your balance is found elsewhere in MultiBit.
So if I highlight that -.11 and click on "Show transaction details...", what I see is that it cost me 11 cents to transfer nothing; the original balance I was trying to transfer is 11 cents less than when I started. I assume that's because I: 1) didn't figure out the correct way to set up a new address, or 2) tried to transfer the entire balance.