I'm not finding it anywhere in the states, but I did come across this recipe if that might help:
Quinoa & Flax Seed Gluten-Free Bread
Quinoa & Flax Seed Gluten-Free Bread | The Kitchen Operas?
Whole Food Market has one by Bread & Circus Bakehouse called Organic Flax & Quinoa bread...as far as I know there are Whole Food Markets in a lot of cities.
If you're really wanting that specific brand, I have no idea how to get it