Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Schedule of Stock Options Activity (Details)

v3.19.1
Stock-Based Compensation - Schedule of Stock Options Activity (Details) - Employee Stock Option [Member]
3 Months Ended
Mar. 31, 2019
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options, Outstanding at Beginning of Year | shares 1,220,000
Options, Granted | shares 869,000
Options, Exercised | shares
Options, Forfeited or Expired | shares
Options, Outstanding at End of Year | shares 2,089,000
Options, Exercisable at End of Year | shares 794,000
Weighted-average Exercise Price, Outstanding at Beginning of Year | $ / shares $ 5.37
Weighted-average Exercise Price, Granted | $ / shares 6.20
Weighted-average Exercise Price, Exercised | $ / shares
Weighted-average Exercise Price, Forfeited or Expired | $ / shares
Weighted-average Exercise Price, Outstanding at End of Year | $ / shares 5.71
Weighted-average Exercise Price, Exercisable at End of Year | $ / shares $ 5.16
Weighted-Average Remaining Contractual Term 7 years
Weighted-Average Remaining Contractual Term, Exercisable 5 years
Aggregate Intrinsic Value, Ending | $ $ 764,000
Aggregate Intrinsic Value, Exercisable | $ $ 624,000