Consolidated Balance Sheets (Unaudited) (Parentheticals) - $ / shares	Jun. 30, 2015	Dec. 31, 2014
Preferred stock, 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	41,537,000	40,371,000
Common stock, shares outstanding	41,537,000	40,371,000
Treasury stock, shares outstanding	905,000	905,000