Net Loss Per Share Attributable to Common Stockholders - Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator:
Net loss	$ (39,879)	$ (6,552)	$ (12,678)
Denominator:
Weighted average common shares outstanding, basic (in shares)	110,574,519	58,621,042	56,475,860
Weighted average common shares outstanding, diluted (in shares)	110,574,519	58,621,042	56,475,860
Net Loss per Share Attributable to Common Stockholders, basic (in dollars per share)	$ (0.36)	$ (0.11)	$ (0.22)
Net Loss per Share Attributable to Common Stockholders, diluted (in dollars per share)	$ (0.36)	$ (0.11)	$ (0.22)