XML 53 R42.htm IDEA: XBRL DOCUMENT v3.7.0.1
Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended
May 10, 2017
Nov. 22, 2016
May 31, 2017
Mar. 31, 2017
Nov. 30, 2016
Exercise price of warrants       $ 22.86  
Public Offering of Warrants and Common Stock [Member]          
Sale of stock, number of shares issued in transaction   533,500      
Number of securities called by warrants   533,500      
Number of shares called by each warrant   1      
Sale of stock, price per share   $ 7.50     $ 7.50
Exercise price of warrants   $ 7.50      
Expiration term of warrants (in years)   5 years      
Proceeds from issuance of common stock and warrants   $ 3.3      
Subsequent Event [Member]          
Proceeds from issuance of common stock and warrants     $ 9.1    
Subsequent Event [Member] | Public Offering of Warrants and Common Stock [Member]          
Sale of stock, number of shares issued in transaction 2,584,085        
Sale of stock, price per share $ 1.49   $ 1.49    
Exercise price of warrants $ 1.50   $ 0.01    
Expiration term of warrants (in years) 5 years        
Proceeds from issuance of common stock and warrants $ 9.1        
Subsequent Event [Member] | Public Offering of Warrants and Common Stock [Member] | Underwriter Over-allotment Option [Member]          
Sale of stock, number of shares issued in transaction 110,897        
Number of securities called by warrants 1,043,478        
Subsequent Event [Member] | Public Offering of Warrants and Common Stock [Member] | Pre-Funded Warrant [Member]          
Number of shares called by each warrant 1        
Sale of stock, price per share $ 1.48        
Exercise price of warrants $ 0.01        
Subsequent Event [Member] | Public Offering of Warrants and Common Stock [Member] | Common Warrant [Member]          
Number of securities called by warrants 8,000,000        
Sale of stock, price per share $ 0.01