Sidney's uptown closed

We drove down Hennepin in uptown on Saturday night and noticed Sidney's restaurant was closed. The one time I ate there I really enjoyed myself, the food was good and there was a large variety. I found their website (a poorly made site I might add) and it looks like they still have the other locations open. I can't find any mention of when/why the uptown spot closed. Hopefully their other locations stay open, as it's a nice place for a casual-upscale bite to eat.