v3.8.0.1

Net Loss Per Common Share | 12 Months Ended
--- | ---
Dec. 31, 2017
Earnings Per Share [Abstract] |
Earnings Per Share [Text Block] |
4. | Net Loss Per Common Share
Basic loss per share data for each period presented is computed using the weighted-average number of shares of common stock outstanding during each such period. Diluted loss per share data is computed using the weighted-average number of common and dilutive common-equivalent shares outstanding during each period. Dilutive common-equivalent shares consist of: (a) shares that would be issued upon the exercise of stock options and warrants, computed using the treasury stock method; and (b) shares of non-vested restricted stock. The following securities are excluded from the calculation of weighted average dilutive common shares because their inclusion would have been anti-dilutive:
|  | As of December 31, |
|  | 2017 |  | 2016 |
Stock options |  |  | 809,586 |  |  | 719,929 |
Warrants |  |  | 478,330 |  |  | 336,541 |
Non-vested restricted stock |  |  | 189,674 |  |  | 147,023 |
Total |  |  | 1,477,590 |  |  | 1,203,493 |

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
Name: | us-gaap_EarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration