Warrants (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended		1 Months Ended	3 Months Ended
	Mar. 15, 2013	Mar. 31, 2013	Mar. 31, 2012	Aug. 31, 2007 Issued on 2007 [Member]	Mar. 31, 2012 Issued on 2007 [Member]	Mar. 31, 2013 Issued on 2009 [Member]	May 07, 2009 Issued on 2009 [Member]	Mar. 15, 2013 Venture Capital Funds [Member]
Securities Financing Transaction [Line Items]
Warrants issued to purchase common stock				500,041
Warrant outstanding		200,000			346,781
Expiry date for warrants outstanding					Aug. 01, 2012
Contractual term of warrant						5 years
Common stock shares issued for warrants exercisable	693,202						200,000
Common stock shares issued for warrants, exercise Price	$ 1.118						$ 11.35
Venture capital loan								$ 10
Warrants (Textual) [Abstract]
Warrant exercised		0	0
Class of warrants or rights issuance date	Apr. 26, 2013