Consolidated Balance Sheets (unaudited) (Parentheticals) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Preferred stock, shares par value (in Dollars per share)	$ 0.0001	$ 0.0001
Preferred stock-shares authorized	50,000,000	50,000,000
Preferred stock-shares issued	0	0
Preferred stock-shares outstanding	0	0
Common stock, par value (in Dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	35,374,857	34,341,360
Common stock, shares outstanding	35,374,857	34,341,360
Treasury stock, shares	905,349	905,349