Earnings Per Share - Details of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Numerator:
Net loss	$ (29,279)	$ (31,043)
Denominator:
Weighted average shares outstanding - basic (in shares)	55,422	51,232
Potential common shares - options / warrants (treasury stock method) and convertible notes (as if converted method) (in shares)	0	0
Weighted average shares outstanding - diluted (in shares)	55,422	51,232
Shares excluded (anti-dilutive) (in shares)	3,662	1,324
Net loss per common share:
Basic (in dollars per share)	$ (0.53)	$ (0.61)
Diluted (in dollars per share)	$ (0.53)	$ (0.61)