Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $)	Mar. 31, 2012	Dec. 31, 2011
Common stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	125,000,000	125,000,000
Common stock, shares issued	39,261,072	39,352,375
Common stock, shares outstanding	39,261,072	39,352,375