CONSOLIDATED BALANCE SHEETS PARENTHETICAL (Parentheticals) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Common stock, par or stated value per share	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common Stock, shares issued	42,340,173	40,792,449
Common Stock, shares outstanding	38,745,624	37,221,344
Preferred stock, par or stated value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred Stock, shares issued	0	0