Earnings Per Share Applicable to Common Stockholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net loss	$ (7,740)	$ (7,381)
Basic loss per common share (in dollars per share)	$ (0.11)	$ (0.12)
Diluted loss per common share (in dollars per share)	$ (0.11)	$ (0.12)
Basic weighted average common shares outstanding (in shares)	68,314	64,164
Diluted weighted average common shares outstanding (in shares)	68,314	64,164
Potentially dilutive securities:
Restricted stock units	356	0
Nonvested shares of restricted stock	200	200
Stock option
Potentially dilutive securities:
Stock options	11,954	11,466