Consolidated Balance Sheets (Parentheticals) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Preferred stock, par value (in Dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized (in Shares)	50,000,000	50,000,000
Preferred stock,shares issued (in Shares)	0	0
Preferred stock, shares outstanding (in Shares)	0	0
Common stock, par value (in Dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in Shares)	250,000,000	250,000,000
Common stock,shares issued (in Shares)	34,193,304	34,090,618
Common stock, shares outstanding (in Shares)	34,193,304	34,090,618
Treasury stock, shares (in Shares)	905,349	805,613