Annual report pursuant to Section 13 and 15(d)

Liquidity and Management Plans (Details Textual)

v3.6.0.2
Liquidity and Management Plans (Details Textual) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Liquidity And Management Plans [Line Items]                        
Engineering product development                 $ 1,451,941      
Net income (loss) $ (14,611,234) $ (10,125,063) $ (10,284,555) $ (10,796,542) $ (8,884,180) $ (5,605,661) $ (6,146,582) $ (6,925,279) (45,817,394) $ (27,561,702) $ (45,603,110)  
Cash and Cash Equivalents, at Carrying Value, Total $ 31,258,637       $ 29,872,564       31,258,637 29,872,564 31,494,592 $ 1,953,780
Proceeds from Issuance of Common Stock                 34,788,311 0 0  
Net Cash Provided by (Used in) Operating Activities, Continuing Operations, Total                 $ (33,062,247) $ (20,005,734) $ (15,606,423)