Annual report pursuant to Section 13 and 15(d)

Net Loss Per Share Of Common Stock, Basic And Diluted (Details)

v3.8.0.1
Net Loss Per Share Of Common Stock, Basic And Diluted (Details) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Basic income (loss) per share                      
Net income (loss) $ (3,091,000) $ 18,721,000 $ (1,799,000) $ (1,961,000) $ (1,639,000) $ (6,169,000) $ (3,524,000) $ (5,140,000) $ 11,869,823 $ (16,471,603) $ (10,490,103)
Weighted average shares of common stock outstanding, basic (in shares)                 18,410,005 8,830,396 2,226,023
Basic income (loss) per share (in dollars per share) $ (0.11) $ 0.52 $ (0.14) $ (0.19)         $ 0.42 $ (1.87) $ (4.71)
Diluted income (loss) per share:                      
Net income (loss) attributable to common shares                 $ 7,772,084 $ (16,471,603) $ (10,490,103)
Net income (loss) reallocated                 49,642 0 0
Undistributed earnings (loss) allocable to common shares                 $ 7,821,726 $ (16,471,603) $ (10,490,103)
Effect of dilutive securities:                      
Stock options (in shares)                 61,510 0 0
Underwriters' unit purchase options (in shares)                 283,284 0 0
Potentially dilutive shares (in shares)                 344,794 0 0
Weighted average number of shares of common stock outstanding, diluted (in shares)                 18,754,799 8,830,396 2,226,023
Diluted income (loss) per share (in dollars per share) $ (0.11) $ 0.52 $ (0.14) $ (0.19)         $ 0.42 $ (1.87) $ (4.71)
Common stock warrants                      
Basic income (loss) per share                      
Undistributed earnings (loss) allocated to participating securities                 $ 4,097,739 $ 0 $ 0
Weighted average shares of common stock outstanding, basic (in shares)                 9,706,458 0 0
Basic income (loss) per share (in dollars per share)                 $ 0.42 $ 0.00 $ 0.00
Common stock                      
Basic income (loss) per share                      
Undistributed earnings (loss) allocated to participating securities                 $ 7,772,084 $ (16,471,603) $ (10,490,103)
Weighted average shares of common stock outstanding, basic (in shares)                 18,410,005 8,830,396 2,226,023
Common Stock And Participating Warrants                      
Basic income (loss) per share                      
Weighted average shares of common stock outstanding, basic (in shares)                 28,116,463 8,830,396 2,226,023