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Equity Instruments (Details Textual) - USD ($)
 1 Months Ended 6 Months Ended 12 Months Ended
Aug. 31, 2017
Mar. 31, 2017
Feb. 28, 2017
Nov. 30, 2016
Jul. 31, 2016
May 31, 2016
Aug. 31, 2015
Jul. 31, 2015
Dec. 31, 2017
Dec. 31, 2016
Jun. 30, 2017
Jun. 30, 2016
Feb. 29, 2016
Jun. 30, 2015
Equity Instruments (Textual)                            
Weighted average remaining years to vest (in years)                 1 year 4 months 13 days   1 year 9 months 22 days      
Warrants to purchase of common stock 6,314,671   149,552                      
Warrants exercise price $ 3.60                   $ 15.20      
Warrants exercise price term 5 years                          
Common stock option repricing program, description         Board of Directors approved a common stock option repricing program whereby previously granted and unexercised options held by our then current employees, consultants and directors with exercise prices above $120.00 per share were repriced on a one-for-one basis to $64.60 per share.                  
Stock-based compensation expense         $ 318,000           $ 34,000      
Aggregate principal amount             $ 5,200,000 $ 5,200,000            
Placement agent proceeds             8.00% 8.00%     8.00%      
Placement agents warrants term, description                     The placement agents warrants have a term of five years from the date of issuance of the related notes in July and August 2015, an exercise price equal to 100% of the price per share at which equity securities were sold in our next equity financing, and provide for cashless exercise.      
Warrants to placement agents aggregate shares                       1,115    
Exercise price per share                       $ 156.00    
Warrants issued to placement agents for convertible promissory notes                       1,129    
Warrants issued to placement agents for the registered offering                     20,077 5,474    
Weighted average exercise price                       $ 96.00    
Warrants issued to placement agents for the registered offering price per share                     $ 15.00 $ 120.00    
Warrants issued on convertible note                       15,279    
Warrants issued to investors in connection with the registered offering                     301,014 86,667    
Warrants issued to investors in connection with the registered offering price per share                     $ 37.20 $ 120.00    
Over-allotment option for the warrants     $ 15.00                      
Modification expense                     $ 1,507    
Proceeds from issuance of warrants                 $ 2,852 $ 2,852    
Aggregate warrants to purchase     25,541                      
Fair value of placement agent warrants     $ 23,000                      
Common stock reserved for issuance                     175,522      
Selling, General and Administrative Expenses [Member]                            
Equity Instruments (Textual)                            
Modification expense   $ 1,500                        
Non-cash expense                     $ 596,000      
Convertible Promissory Notes May 2016 [Member]                            
Equity Instruments (Textual)                            
Exercise price per share           $ 120.00                
Fair value of warrants           $ 480,000                
Warrants issued on convertible note           15,279                
Placement Agent warrants [Member]                            
Equity Instruments (Textual)                            
Warrants to placement agents aggregate shares           1,115                
Exercise price per share           $ 156.00                
Warrants issued to placement agents for convertible promissory notes           1,129                
Fair value of warrants     $ 63,000     $ 50,000             $ 87,000  
Warrants issued to placement agents for the registered offering           5,474           5,474    
Weighted average exercise price           $ 96.00                
Warrants issued to placement agents for the registered offering price per share           $ 120.00                
Aggregate to purchase       20,077             4,402      
Over allotment warrants exercise price       $ 37.20             $ 80.00      
Placement Agent warrants [Member] | Over Allotment Warrants [Member]                            
Equity Instruments (Textual)                            
Aggregate to purchase       301,014                    
Over allotment warrants exercise price       $ 37.20                    
Investors Warrants [Member]                            
Equity Instruments (Textual)                            
Warrants issued to investors in connection with the registered offering           86,667                
Warrants issued to investors in connection with the registered offering price per share           $ 120.00                
Bankers Warrants [Member]                            
Equity Instruments (Textual)                            
Warrants to purchase of common stock                       429    
Over-allotment option for the warrants     $ 15.00                      
Bankers Warrants [Member] | Maximum [Member]                            
Equity Instruments (Textual)                            
Over-allotment option for the warrants   $ 156.00                        
Bankers Warrants [Member] | Minimum [Member]                            
Equity Instruments (Textual)                            
Over-allotment option for the warrants   $ 15.00                        
May 2016 [Member]                            
Equity Instruments (Textual)                            
Warrants to purchase of common stock     86,667                      
Over-allotment option for the warrants     $ 120.00                      
October 2016 [Member]                            
Equity Instruments (Textual)                            
Over-allotment option for the warrants     $ 37.20                      
Aggregate to purchase     301,014                      
Warrants [Member]                            
Equity Instruments (Textual)                            
Placement agents warrants term, description     The Company also reduced the exercise prices of an aggregate of 25,541 warrants to purchase shares of common stock, which were originally issued as underwriters' compensation in the May 2016 and October 2016 financings, from $120.00 per share and $37.20 per share, respectively, to $15.00 per share.                      
Over-allotment option for the warrants       $ 37.20   $ 120.00                
Proceeds from issuance of warrants       $ 7,300,000                    
Incremental fair value     $ 178,000                      
Employee Stock Option [Member]                            
Equity Instruments (Textual)                            
Grant purchase   36,864     15,803                  
Price per share   $ 16.40                        
Employee Stock Option [Member] | Maximum [Member]                            
Equity Instruments (Textual)                            
Price per share   1,111.20     $ 362.40                  
Employee Stock Option [Member] | Minimum [Member]                            
Equity Instruments (Textual)                            
Price per share   $ 64.60     $ 134.40                  
2015 Stock Option and Incentive Plan [Member]                            
Equity Instruments (Textual)                            
Aggregate shares of common stock                     100,000     3,000,000
Unrecognized expense share-based compensation expense                 $ 390,000          
Grant purchase                 2,271,205          
Common stock reserved for issuance                           100,000