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		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net loss	$ (8,567)	$ (5,391)	$ (11,869)	$ (10,304)
Less: Preferred stock cumulative dividends and deemed dividends	(2,658)	(2,211)	(5,196)	(16,740)
Numerator for basic undistributed net loss per common share	(11,225)	(7,602)	(17,065)	(27,044)
Numerator for diluted undistributed net loss per common share	$ (11,225)	$ (7,602)	$ (17,065)	$ (27,044)
Weighted Average Number of Shares Issued, Basic	43,885	43,067	43,599	42,952
Weighted Average Number of Shares, Restricted Stock	(1,070)	(524)	(844)	(450)
Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants	1,893	1,897	1,894	1,059
Weighted average common shares outstanding, diluted (in shares)	44,708	44,440	44,649	43,561
Weighted Average Number of Shares Outstanding, Basic and Diluted	44,708	44,440	44,649	43,561
Basic net loss per share (in dollars per share)	$ (0.25)	$ (0.17)	$ (0.38)	$ (0.62)
Diluted net loss per share (in dollars per share)	(0.25)	(0.17)	(0.38)	(0.62)
Basic and diluted net loss per common share	(0.25)	(0.17)	(0.38)	(0.62)
Cash dividends declared per share (in dollars per share)	$ 0	$ 0	$ 0	$ 0