Net Loss per Share (Details) Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share - shares	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	2,097,978	2,621,503	4,006,399	4,123,023
Common shares attributable to dilutive effect of warrants	0
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	2,097,978	2,621,503	4,006,399
Restricted stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Restricted stock, outstanding	581,943	451,160	256,842
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common shares attributable to dilutive effect of warrants	0	480,000	810,000