Annual report pursuant to Section 13 and 15(d)

Liquidity and Management Plans (Details Textual)

v3.3.1.900
Liquidity and Management Plans (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 12 Months Ended
Apr. 04, 2014
Apr. 02, 2014
Apr. 02, 2014
Mar. 07, 2014
Nov. 30, 2015
Nov. 17, 2015
Apr. 24, 2015
Apr. 30, 2014
Mar. 27, 2014
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Liquidity And Management Plans [Line Items]                                          
Engineering product development                                   $ 2,500,000      
Net income (numerator for basic and diluted earnings per share)                   $ (8,884,180) $ (5,605,661) $ (6,146,582) $ (6,925,279) $ (9,024,010) $ (5,847,998) $ 278,621 $ (31,009,723) (27,561,702) $ (45,603,110) $ (5,521,081)  
Cash and Cash Equivalents, at Carrying Value, Total                   $ 29,872,564       $ 31,494,592       29,872,564 31,494,592 1,953,780 $ 994
Stock Issued During Period, Shares, New Issues         3,000,005                                
Proceeds from Issuance of Common Stock                                   $ 0 $ 0 200,681  
Debt Conversion, Converted Instrument, Shares Issued     1,833,336                               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 0  
Payments for Commissions $ 100,000             $ 100,000                          
Proceeds From Shelf Registration Debt Or Equity Securities             $ 75,000,000                            
Net Cash Provided by (Used in) Operating Activities, Continuing Operations, Total                                   (20,005,734) (15,606,423) (3,430,978)  
Consummation of Offering Under Shelf Registration [Member]                                          
Liquidity And Management Plans [Line Items]                                          
Stock Issued During Period, Shares, New Issues           3,000,005                              
Proceeds from Issuance of Common Stock         $ 19,048,456 $ 19,333,032                              
Proceeds From Shelf Registration Debt Or Equity Securities             $ 75,000,000                            
Common Stock [Member]                                          
Liquidity And Management Plans [Line Items]                                          
Net income (numerator for basic and diluted earnings per share)                                   $ 0 $ 0 $ 0  
Stock Issued During Period, Shares, New Issues                                     4,600,000    
Proceeds from Issuance of Common Stock                                     $ 21,000,000    
Stock Issued During Period, Shares, Issued for Services 210,527     210,527                           15,000 210,527    
Proceeds from Other Equity $ 700,000               $ 300,000                        
Stock Issued During Period, Shares, Other                                   128,480      
IPO [Member]                                          
Liquidity And Management Plans [Line Items]                                          
Stock Issued During Period, Shares, New Issues   4,600,000           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