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Subsequent Events (Details)
Aug. 04, 2016
$ / shares
Jul. 21, 2016
Jul. 19, 2016
shares
Jul. 18, 2016
shares
Jun. 30, 2016
shares
Dec. 31, 2015
shares
Subsequent Event [Line Items]            
Common stock, shares authorized (in shares)         500,000,000 500,000,000
Subsequent Event [Member]            
Subsequent Event [Line Items]            
Reverse stock split ratio   0.0625        
Common stock, shares authorized (in shares)     500,000,000 170,000,000    
Closing bid price per NASDAQ listing notification letter | $ / shares $ 1.00          
Consecutive business days for closing bid price of common stock 10 days          
Subsequent Event [Member] | Minimum [Member]            
Subsequent Event [Line Items]            
Reverse stock split ratio     0.1      
Subsequent Event [Member] | Series C Warrants [Member]            
Subsequent Event [Line Items]            
Securities purchase agreement date     Jun. 06, 2016      
Subsequent Event [Member] | Series C Warrants [Member] | Minimum [Member]            
Subsequent Event [Line Items]            
Percentage of conversion of notes and exercise of warrants     20.00%