Earnings Per Share Applicable to Common Stockholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net loss	$ (6,397)	$ (5,566)	$ (14,137)	$ (12,947)
Basic loss per common share (in dollars per share)	$ (0.09)	$ (0.08)	$ (0.21)	$ (0.20)
Diluted loss per common share (in dollars per share)	$ (0.09)	$ (0.08)	$ (0.21)	$ (0.20)
Basic weighted average common shares outstanding (in shares)	68,336	67,986	68,325	66,086
Diluted weighted average common shares outstanding (in shares)	68,336	67,986	68,325	66,086
Potentially dilutive securities:
Restricted stock units (in shares)	593	92	593	92
Nonvested shares of restricted stock (in shares)		200		200
Stock option
Potentially dilutive securities:
Stock options (in shares)	11,907	10,535	11,907	10,535