Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details Textual)

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Stockholders' Equity (Details Textual) - USD ($)
 1 Months Ended 9 Months Ended 12 Months Ended
Jul. 05, 2017
Nov. 07, 2016
Aug. 09, 2016
Jun. 28, 2017
Dec. 30, 2016
Nov. 17, 2015
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Apr. 24, 2015
Class of Stock [Line Items]                    
Proceeds from Issuance of Common Stock             $ 14,932,547 $ 19,890,660 $ 49,720,858  
Consummation of Offering Under Shelf Registration [Member]                    
Class of Stock [Line Items]                    
Stock Issued During Period, Shares, New Issues           3,000,005        
Common Stock, Discount on Shares           $ 1,242,002        
Stock Offering Expenses On Issue Of Common Stock           125,000        
Additional Stock Offering Expenses On Issue Of Common Stock           284,576        
Proceeds From Issuance Of Common Stock Net Off Offering Expenses And Discount           $ 19,048,456        
Share Price           $ 6.90        
Proceeds from Issuance of Common Stock           $ 19,333,032        
Dialog Semiconductor Plc [Member]                    
Class of Stock [Line Items]                    
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 17.0257   $ 19.9766            
Warrant [Member] | Dialog Semiconductor Plc [Member]                    
Class of Stock [Line Items]                    
Stock Issued During Period, Shares, New Issues   763,552   976,139            
Stock Issued During Period, Value, New Issues $ 14,999,935 $ 10,000,011                
Common Stock [Member] | Dialog Semiconductor Plc [Member]                    
Class of Stock [Line Items]                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   763,552   654,013            
Private Placement [Member]                    
Class of Stock [Line Items]                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                   75,000,000
Class of Warrant or Right, Exercise Price of Warrants or Rights     $ 23.00              
Stock Issued During Period, Value, New Issues     $ 20,000,000              
Private Placement [Member] | Ascend Legemd Master Fund [Member]                    
Class of Stock [Line Items]                    
Stock Issued During Period, Shares, New Issues     1,618,123              
Share Price     $ 12.36              
Class of Warrant or Right, Number of Securities Called by Warrants or Rights     1,618,123              
Private Placement [Member] | Dialog Semiconductor Plc [Member]                    
Class of Stock [Line Items]                    
Share Price   $ 13.0967   $ 15.3666            
Private Placement [Member] | JT Group [Member]                    
Class of Stock [Line Items]                    
Stock Issued During Period, Shares, New Issues         292,056          
Share Price         $ 17.12          
Stock Issued During Period, Value, New Issues         $ 4,999,975