Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Stock Option Activity) (Details)

v3.8.0.1
Stock-Based Compensation (Stock Option Activity) (Details)
3 Months Ended
Mar. 31, 2018
$ / shares
shares
Stock-Based Compensation [Abstract]  
Number of Shares Underlying Options, Outstanding at January 1, 2018 | shares 2,597,000
Number of Shares Underlying Options, Granted | shares 494,941
Number of Shares Underlying Options, Forfeited/expired | shares (95,000)
Number of Shares Underlying Options, Outstanding at March 31, 2018 | shares 2,997,000
Number of Shares Underlying Options, Exercisable at March 31, 2018 | shares 1,579,000
Weighted Average Exercise Price Per Share, Outstanding at January 1, 2018 | $ / shares $ 1.77
Weighted Average Exercise Price Per Share, Granted | $ / shares 0.86
Weighted Average Exercise Price Per Share, Forfeited/expired | $ / shares 7.75
Weighted Average Exercise Price Per Share, Outstanding at March 31, 2018 | $ / shares 1.43
Weighted Average Exercise Price Per Share, Exercisable at March 31, 2018 | $ / shares $ 1.84