Common Stock (Narrative) (Details) (USD $)	1 Months Ended																									3 Months Ended	12 Months Ended						163 Months Ended
	Dec. 31, 2012	Nov. 30, 2012	Oct. 31, 2012	Sep. 30, 2012	Aug. 31, 2012	Jul. 31, 2012	Jun. 30, 2012	May 31, 2012	Apr. 30, 2012	Mar. 31, 2012	Feb. 29, 2012	Jan. 31, 2012	Dec. 31, 2011	Nov. 30, 2011	Oct. 31, 2011	Sep. 30, 2011	Aug. 31, 2011	Jul. 31, 2011	Jun. 30, 2011	May 31, 2011	Apr. 30, 2011	Mar. 31, 2011	Feb. 28, 2011	Jan. 31, 2011	Dec. 31, 2010	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008	Dec. 31, 2007	Dec. 31, 2012	Aug. 08, 2011	Aug. 07, 2011
Stock Issued During Period, Shares, Stock Options Exercised	0	0	4,500	0	40,000	0	0	4,000	0	10,000	52,300	10,000	60,000	0	33,700	40,000	44,500	170,000	85,000	249,500	80,000	625,000	270,500	565,720		454,100	120,800	2,223,920	454,100
Stock Issued During Period, Value, Stock Options Exercised																										$ 431,915	$ 96,884	$ 2,240,208	$ 431,915	$ 166,125	$ 305,025	$ 288,100
Class of Warrant or Right, Exercises in Period																							4,041,421		25,000			4,041,421	25,000
Proceeds from Warrant Exercises																							12,124,263		75,000			12,124,263
Common Stock, Shares Authorized	750,000,000												750,000,000														750,000,000	750,000,000					750,000,000	750,000,000	200,000,000
Stock Issued During Period, Shares, Issued for Cash																									6,147,446
Stock Issued During Period, Value, Issued for Cash																									20,000,000
Payments of Stock Issuance Costs																									$ 1,177,395		$ 0	$ 24,643	$ 1,177,395				$ 4,507,138