Consolidated Balance Sheets (June 30, 2013 Unaudited) (Parentheticals) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Preferred stock,par value (in Dollars per share)	$ 0.005	$ 0.005
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in Dollars per share)	$ 0.005	$ 0.005
Common stock, shares authorized	160,000,000	80,000,000
Common stock, shares issued	44,970,989	44,730,445
Common stock, outstanding	44,970,989	44,730,445