Summary of Significant Accounting Policies (Details 1) (USD $)	6 Months Ended
	Jun. 30, 2012
Common stock warrant liability [Member]
Reconciliation of liabilities measured at fair value using significant observable inputs (Level 3)
Beginning Balance	$ 345,000
Change in fair value	42,000
Ending Balance	387,000
Embedded derivative liabilities [Member]
Reconciliation of liabilities measured at fair value using significant observable inputs (Level 3)
Beginning Balance	845,000
Change in fair value	(368,000)
Ending Balance	$ 477,000