Quarterly report pursuant to Section 13 or 15(d)

Liquidity and Management Plans (Details Textual)

v3.3.0.814
Liquidity and Management Plans (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Apr. 04, 2014
Apr. 24, 2015
Apr. 30, 2014
Mar. 27, 2014
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2014
Dec. 31, 2013
Liquidity And Management Plans [Line Items]                    
Engineering product development         $ 2,075,000   $ 2,500,000      
Net loss         (5,605,661) $ (5,847,998) (18,677,522) $ (36,579,100)    
Cash and Cash Equivalents, at Carrying Value, Total         $ 15,510,189 $ 18,420,480 $ 15,510,189 18,420,480 $ 31,494,592 $ 1,953,780
Debt Conversion, Converted Instrument, Shares Issued             1,833,336      
Stock Issued During Period Shares Upon Conversion Of Debt Instrument Interest             96,792      
Proceeds from Other Equity $ 900,000           $ 0 900,000    
Payments for Commissions $ 100,000                  
Proceeds From Shelf Registration Debt Or Equity Securities   $ 75,000,000                
Net Cash Provided by (Used in) Operating Activities, Continuing Operations, Total             (15,460,067) $ (8,490,970)    
Common Stock [Member]                    
Liquidity And Management Plans [Line Items]                    
Net loss             $ 0      
Proceeds from Issuance of Common Stock                 $ 21,000,000  
Stock Issued During Period, Shares, Issued for Services 210,527           15,000      
Proceeds from Other Equity $ 700,000     $ 300,000            
Stock Issued During Period, Shares, Other             110,685      
IPO [Member]                    
Liquidity And Management Plans [Line Items]                    
Stock Issued During Period, Shares, New Issues     4,600,000              
Proceeds from Issuance of Common Stock     $ 24,800,000              
Secondary Offering [Member] | Common Stock [Member]                    
Liquidity And Management Plans [Line Items]                    
Stock Issued During Period, Shares, Other                 3,285,714