Help me out with this play...

[rmgustaf]

I'm small blind with K9s early on in a SnG game at Party Poker. Flop comes Qs10sxo. I'm one of the shorter stacks and check around. River comes xo. I have 12 outs (little better than 4 to 1). The only other person in the hand puts me all in. Should I call?

I called and lost to a pair of Aces (river was 8d or something). Was it a good call though? Doubling up early in the tournament like that would have put me in a commanding lead (I was at around 700 chips). Is it worth it?

Edit: I figured that the player was on a high pair with the A or Q. They seemed to play pretty tight. Not sure what they read me as.