Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies - Summary of Computation of Net Income or Loss Per Share (Details)

v3.6.0.2
Significant Accounting Policies - Summary of Computation of Net Income or Loss Per Share (Details) - 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
Numerator:                      
Net income (loss) $ 1,100,302 $ 1,183,044 $ 1,311,209 $ 139,153 $ (42,159) $ 669 $ (171,352) $ (57,500) $ 3,733,707 $ (270,342) $ 3,588,300
Accretion of dividends on preferred stock                 1,537,021 2,444,954 2,431,836
Net income (loss) attributable to common stockholders                 2,196,686 (2,715,296) 1,156,464
Accretion of dividends on preferred stock                 125,205    
Adjustment for change in fair value of warrant liability                 (460,289) (85,325) (2,747,570)
Net income (loss) attributable to common stockholders - diluted                 $ 1,861,602 $ (2,800,621) $ (1,591,106)
Weighted average shares used in calculating income (loss) per share                      
Basic                 3,373,316 651,593 555,805
Diluted                 4,667,503 651,593 555,805
Net income (loss) per share:                      
Basic $ 0.14 $ 0.21 $ 0.97 $ (0.70) $ (0.99) $ (0.93) $ (1.20) $ (1.05) $ 0.65 $ (4.17) $ 2.08
Diluted $ 0.12 $ 0.16 $ 0.15 $ (0.82) $ (0.99) $ (1.05) $ (1.22) $ (1.44) $ 0.40 $ (4.30) $ (2.86)