Stockholders' Equity (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended						0 Months Ended	3 Months Ended		0 Months Ended		3 Months Ended		0 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Feb. 26, 2013 David Brunton [Member]	Mar. 16, 2012 John Reardon [Member]	Mar. 21, 2013 Series A Preferred Stock [Member]	Mar. 31, 2013 Series A Preferred Stock [Member]	Dec. 31, 2012 Series A Preferred Stock [Member]	Mar. 21, 2013 Series B Preferred Stock [Member]	Feb. 27, 2013 Series B Preferred Stock [Member]	Mar. 31, 2013 Series B Preferred Stock [Member]	Dec. 31, 2012 Series B Preferred Stock [Member]	Mar. 21, 2013 Common Stock Series A Preferred Stock [Member]	Mar. 21, 2013 Common Stock Series B Preferred Stock [Member]	Feb. 27, 2013 Common Stock Series B Preferred Stock [Member]
Stockholders Equity (Textual)
Common stock issuable upon exercise of warrants	270,094				320,000	200,000
Conversion of Stock, Shares Issued							83			8	4			39,790	929	528
Preferred stock, liquidation preference								$ 0.001	$ 0.001			$ 0.001	$ 0.001
Preferred stock, voting rights								One vote for each share				One vote for each share
Preferred stock conversion ratio per share of common stock								480.63				132.07
Common Stock, Value	$ 34	$ 33
Conversion of warrant into common stock, shares converted	198,512				266,228	174,798
Common stock, shares authorized	70,000,000	70,000,000	70,000,000	848,000,000
Preferred stock, shares authorized			1,000,000	2,000,000				444,541	444,541			54,425	54,425
Stockholders' equity, reverse stock split	1-for-25
Common stock, shares issued	33,875,625	33,331,182