CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Balance Sheet Parenthetical [Abstract]
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	51,642,520	51,637,352
Common stock, shares outstanding	51,642,520	51,637,352