Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Details)

v3.7.0.1
Subsequent Events - Additional Information (Details)
Aug. 14, 2017
USD ($)
Aug. 01, 2017
USD ($)
Jun. 30, 2017
Aug. 31, 2014
USD ($)
Minimum        
Subsequent Event [Line Items]        
Reverse stock split     0.5  
Maximum        
Subsequent Event [Line Items]        
Reverse stock split     0.1  
Secured term loan        
Subsequent Event [Line Items]        
Secured term loan face amount       $ 7,500,000.0
Subsequent Event        
Subsequent Event [Line Items]        
Proceeds from definitive agreement for the assignment of CERC 501 $ 25,000,000      
Portion of proceeds deposited in escrow $ 3,750,000      
Escrow deposit, term 12 months      
Milestone payment from definitive agreement for the assignment of CERC 501 $ 20,000,000      
Subsequent Event | Secured term loan        
Subsequent Event [Line Items]        
Final term loan payment   $ 494,231    
Term loan termination fee   $ 187,500