Fair Value Measurements (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Fair value adjustments for warrant liabilities	$ 3
Fair Value, Inputs, Level 3 [Member]
Beginning balance	3,126,000	917,000
Issuance of new warrants		214,000
Fair value adjustments for warrant liabilities	2,618,000	1,995,000
Reclassification to stockholders' equity	(5,696,000)
Ending balance	$ 48,000	$ 3,126,000