The Company and Summary of Significant Accounting Policies (Details) (USD $)	6 Months Ended		12 Months Ended	1 Months Ended	6 Months Ended
	Jun. 30, 2014 Patients	Jun. 30, 2013	Dec. 31, 2013	Feb. 28, 2014 Two Zero One Four Equity Financings Registered Direct Offering	Jun. 30, 2014 Phase 3 heart failure (HF) trial of Gencaro Patients
Company Basis of Presentation
Number of patients					2,708
Number of patients company plans to enroll	200				420
Fund raised through sale of convertible preferred and common stock			$ 19,300,000
Proceeds from the issuance of common stock	$ 9,038,000	$ 1,741,000		$ 7,900,000