Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net loss	$ (13,220)	$ (14,672)
Denominator:
Weighted-average number of common shares - basic (in shares)	41,465,798	35,563,275
Loss per common share - basic (in dollars per share)	$ (0.32)	$ (0.41)
Loss per common share - diluted (in dollars per share)	$ (0.32)	$ (0.41)
Options on Common Shares Outstanding
Denominator:
Total potentially antidilutive derivatives excluded from losses per share (in shares)	5,259,847	3,905,192
Restricted Stock Units Unvested
Denominator:
Total potentially antidilutive derivatives excluded from losses per share (in shares)	166,700	13,491
Warrants on Common Shares Outstanding
Denominator:
Total potentially antidilutive derivatives excluded from losses per share (in shares)	1,714,429	1,714,429