A quick check of their Daily Dose of Decadent blog revealed a Submissions post addressing the question of what they are looking for, included the following:
"I REALLY want some Sci-fiRom. Give it to me at any length."
"I would invite authors with back list titles they own to submit and see them published once more with a company committed to promoting."
There's your knock of opportunity, Brigaders. Polish up those manuscripts and fire away. Decadent's submission guidelines can be found here.