According to a message posted 2/13/13 on the establishment's Facebook page, they're trying to reopen:
As some of you might know, Machavelle's doors have been closed since Feb 1st. We are working diligently to reopen very soon to continue serving you all!However, the "for sale" sign raises questions about that optimism.
We thank all of our patrons who have expressed their best wishes to us during this time.
We will keep you posted on the latest developments!
As the photo indicates, the Machavelle space is right next to a larger building with scaffolding outside it. Machavelle opened in May 2011, more than 16 months before the arena did.
Why exactly the doors closed is unclear; it's impossible to leave a phone message. However, among business establishments near the arena, bars and restaurants have generally thrived, while others have not.