Net Income (Loss) Per Common Share - Summary of Net Income (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Net loss	$ (2,215)	$ (3,377)	$ (14,084)	$ (13,681)
Less: Preferred stock cumulative dividends and deemed dividends	(2,783)	(2,314)	(7,979)	(19,054)
Numerator for basic undistributed net loss per common share	(4,998)	(5,691)	(22,063)	(32,735)
Numerator for diluted undistributed net loss per common share	$ (4,998)	$ (5,691)	$ (22,063)	$ (32,735)
Weighted Average Number of Shares Issued, Basic	43,884	43,034	43,695	42,980
Weighted Average Number of Shares, Restricted Stock	(1,065)	(476)	(918)	(459)
Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants	1,892	1,897	1,893	1,341
Weighted average common shares outstanding, diluted (in shares)	44,711	44,455	44,670	43,862
Weighted Average Number of Shares Outstanding, Basic and Diluted	44,711	44,455	44,670	43,862
Basic net loss per share (in dollars per share)	$ (0.11)	$ (0.13)	$ (0.49)	$ (0.75)
Diluted net loss per share (in dollars per share)	(0.11)	(0.13)	(0.49)	(0.75)
Basic and diluted net loss per common share	(0.11)	(0.13)	(0.49)	(0.75)
Cash dividends declared per share (in dollars per share)	$ 0	$ 0	$ 0	$ 0