How much was Jon Heder paid for the lead role in Napoleon Dynamite?

I saw Napoleon Dynamite in the theater back in 2004 before anyone really knew what it was. Of course, even after seeing it and following all its success, I'm not sure anyone still really knows what it is.

All I know is that I laughed, and I was pretty sure the lead actor was just that guy. Jon Heder's depiction of the titular character is probably the main reason it did so well — and he deserves any and all praise for his performance.

But how well compensated was he for that role?