Stockholders' Equity - Restricted Stock Awards (Details) - USD ($) |
9 Months Ended | |
---|---|---|
Sep. 30, 2017 |
Sep. 30, 2016 |
|
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
Restricted stock, shares issued during period (in shares) | 745,392 | |
Restricted Stock Units (RSUs) [Member] | ||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
Equity instruments other than options, vested in period, fair value | $ 1,285,578 | |
Granted, weighted average grant date fair value (in USD per share) | $ 1.59 | $ 4.06 |
Restricted Stock [Member] | ||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
Equity instruments other than options, vested in period, fair value | $ 596,314 | |
Granted, weighted average grant date fair value (in USD per share) | $ 0.80 |