Dorman was named Clydesdale Bank Premier League Player of the Month for April - the second time he has won the monthly award this campaign.
Dorman said: "I definitely feel gratitude to St Mirren. They were the people who took the risk on me. Between the manager, chairman and everyone else at the club, I owe them quite a lot.
"I'd be happy to stay at St Mirren. But first we have some important games coming up that I want to concentrate on.
"Finishing the season well is the club's main aim at the moment. We have to make sure we are ready to go on Saturday.
"It was a case of coming back over and trying my luck. I watched European games every week when I was in America and I wanted to be part of it.
"St Mirren were the first club willing to take a chance on me, so it was a case of coming over and seeing how I did. Things have gone well and I'm happy.
"It's probably fair to say it has surpassed my expectations. I had tried to play professionally in England before I went to America but that didn't work out - so I didn't really know what to expect when I came over here.
"But reaching a cup semi-final and playing in the SPL has been brilliant."