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Equity (Tables) | 9 Months Ended
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Sep. 30, 2019
Equity [Abstract] |
Schedule of Stockholders Equity | The tables below present changes in stockholders' equity for the three and nine months ended September 30, 2019 and 2018.
| Common Stock |  | Additional Paid-in Capital |  | Accumulated Deficit |  | Other Comprehensive Income |  | Total Stockholders' Equity
| Shares |  | Amount |
Balances at June 30, 2019 | 81,046,524 |  |  | $ | 8,105 |  |  | $ | 220,770,338 |  |  | $ | (117,323,976 | ) |  | $ | — |  |  | $ | 103,454,467 |
Net loss | — |  |  | — |  |  | — |  |  | (1,205,827 | ) |  | — |  |  | (1,205,827 | )
Issuance of common stock | 53,332 |  |  | 5 |  |  | (5 | ) |  | — |  |  | — |  |  | — |
Payment of common stock tendered for employee stock-based compensation tax obligations | (25,576 | ) |  | (3 | ) |  | (143,217 | ) |  | — |  |  | — |  |  | (143,220 | )
Stock-based compensation | — |  |  | — |  |  | 761,096 |  |  | — |  |  | — |  |  | 761,096 |
Balances at September 30, 2019 | 81,074,280 |  |  | $ | 8,107 |  |  | $ | 221,388,212 |  |  | $ | (118,529,803 | ) |  | $ | — |  |  | $ | 102,866,516 |
| Common Stock |  | Additional Paid-in Capital |  | Accumulated Deficit |  | Other Comprehensive Income |  | Total Stockholders' Equity
| Shares |  | Amount |
Balances at December 31, 2018 | 80,763,350 |  |  | $ | 8,076 |  |  | $ | 218,697,872 |  |  | $ | (115,791,261 | ) |  | $ | — |  |  | $ | 102,914,687 |
Net loss | — |  |  | — |  |  | — |  |  | (2,738,542 | ) |  | — |  |  | (2,738,542 | )
Issuance of common stock upon exercise of stock options | 9,769 |  |  | 1 |  |  | (1 | ) |  | — |  |  | — |  |  | — |
Issuance of common stock upon vesting of RSUs and exercise of stock-settled appreciation rights | 121,771 |  |  | 12 |  |  | (12 | ) |  | — |  |  | — |  |  | — |
Issuance of common stock upon exercise of warrants | 159,782 |  |  | 16 |  |  | 1,172,785 |  |  | — |  |  | — |  |  | 1,172,801 |
Issuance of common stock | 53,332 |  |  | 5 |  |  | (5 | ) |  | — |  |  | — |  |  | — |
Payment of common stock tendered for employee stock-based compensation tax obligations | (33,724 | ) |  | (3 | ) |  | (199,807 | ) |  | — |  |  | — |  |  | (199,810 | )
Stock-based compensation | — |  |  | — |  |  | 1,717,380 |  |  | — |  |  | — |  |  | 1,717,380 |
Balances at September 30, 2019 | 81,074,280 |  |  | $ | 8,107 |  |  | $ | 221,388,212 |  |  | $ | (118,529,803 | ) |  | $ | — |  |  | $ | 102,866,516 |
| Common Stock |  | Additional Paid-in Capital |  | Accumulated Deficit |  | Other Comprehensive Income |  | Total Stockholders' Deficiency
| Shares |  | Amount |
Balances at June 30, 2018 | 79,160,058 |  |  | $ | 7,916 |  |  | $ | 214,906,962 |  |  | $ | (556,232,608 | ) |  | $ | — |  |  | $ | (341,317,730 | )
Net loss | — |  |  | — |  |  | — |  |  | 388,050,413 |  |  | — |  |  | 388,050,413 |
Issuance of common stock upon exercise of stock options | 395,663 |  |  | 39 |  |  | 252,640 |  |  | — |  |  | — |  |  | 252,679 |
Issuance of common stock upon vesting of RSUs and exercise of stock-settled appreciation rights | 227,287 |  |  | 23 |  |  | (23 | ) |  | — |  |  | — |  |  | — |
Issuance of common stock upon exercise of warrants | 760,625 |  |  | 76 |  |  | 6,007,771 |  |  | — |  |  | — |  |  | 6,007,847 |
Payment of common stock tendered for employee stock-based compensation tax obligations | (223,098 | ) |  | (22 | ) |  | (1,695,940 | ) |  | — |  |  | — |  |  | (1,695,962 | )
Stock-based compensation | — |  |  | — |  |  | 1,176,558 |  |  | — |  |  | — |  |  | 1,176,558 |
Balances at September 30, 2018 | 80,320,535 |  |  | $ | 8,032 |  |  | $ | 220,647,968 |  |  | $ | (168,182,195 | ) |  | $ | — |  |  | $ | 52,473,805 |
| Common Stock |  | Additional Paid-in Capital |  | Accumulated Deficit |  | Other Comprehensive Income |  | Total Stockholders' Deficiency
| Shares |  | Amount |
Balances at December 31, 2017 | 79,039,000 |  |  | $ | 7,904 |  |  | $ | 214,229,581 |  |  | $ | (537,375,776 | ) |  | $ | — |  |  | $ | (323,138,291 | )
Net income | — |  |  | — |  |  | — |  |  | 369,416,894 |  |  | — |  |  | 369,416,894 |
Issuance of common stock upon exercise of stock options | 408,698 |  |  | 41 |  |  | 252,638 |  |  | — |  |  | — |  |  | 252,679 |
Issuance of common stock upon vesting of RSUs and exercise of stock-settled appreciation rights | 337,084 |  |  | 33 |  |  | (33 | ) |  | — |  |  | — |  |  | — |
Issuance of common stock upon exercise of warrants | 760,625 |  |  | 76 |  |  | 6,007,771 |  |  | — |  |  | — |  |  | 6,007,847 |
Payment of common stock tendered for employee stock-based compensation tax obligations | (224,872 | ) |  | (22 | ) |  | (1,708,268 | ) |  | — |  |  | — |  |  | (1,708,290 | )
Cumulative effect of accounting change | — |  |  | — |  |  | — |  |  | (223,313 | ) |  | — |  |  | (223,313 | )
Stock-based compensation | — |  |  | — |  |  | 1,866,279 |  |  | — |  |  | — |  |  | 1,866,279 |
Balances at September 30, 2018 | 80,320,535 |  |  | $ | 8,032 |  |  | $ | 220,647,968 |  |  | $ | (168,182,195 | ) |  | $ | — |  |  | $ | 52,473,805 |

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- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 + Details
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