Common Stock (Details Textual) In Thousands, except Share data, unless otherwise specified	12 Months Ended					1 Months Ended
	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Nov. 02, 2012	Mar. 26, 2012 GBP (£)	Mar. 21, 2012 USD ($)	Nov. 30, 2012 Common Stock [Member] USD ($)	Nov. 02, 2012 Common Stock [Member] USD ($)
Proceeds From Issuance Of Common Stock	$ 0	$ 639				$ 1,364
Common Stock, Shares, Issued	3,251,187	2,108,732	453,000
Common Stock, Shares, Outstanding	3,251,187	2,108,732	453,000
Common Stock, Par Or Stated Value Per Share	$ 0.001	$ 0.001		£ 16,250.000	$ 0.001		$ 3.01
Common Stock Issuance Costs	$ 48