CONDENSED CONSOLIDATED STATEMENTS OF MEZZANINE EQUITY AND STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Perpetual Preferred Stock	Common stock	Treasury Stock	Additional paid-in capital	Accumulated deficit
Perpetual Redeemable Preferred Stock, Beginning balance (in shares) at Dec. 31, 2020	1,916,000
Perpetual Redeemable Preferred Stock, Beginning balance at Dec. 31, 2020	$ 21,500
Increase (Decrease) in Temporary Equity [Roll Forward]
Accrued dividends on redeemable preferred stock	$ 479
Perpetual Redeemable Preferred Stock, Ending balance (in shares) at Mar. 31, 2021	1,916,000
Perpetual Redeemable Preferred Stock, Ending balance at Mar. 31, 2021	$ 21,979
Common Stock, Beginning balance (in shares) at Dec. 31, 2020			4,798,000
Beginning balance at Dec. 31, 2020	18,429		$ 0	$ (5,728)	$ 149,143	$ (124,986)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	131				131
Shares issued under stock incentive plans, net of shares withheld for employee taxes (in shares)			3,000
Shares issued under stock incentive plans, net of shares withheld for employee taxes	(5)				(5)
Accrued dividends on redeemable preferred stock	(479)				(479)
Proceeds from the exercise of warrants (in shares)			220,000
Proceeds from the exercise of warrants	493				493
Net (loss) income	5,432					5,432
Common Stock, Ending balance (in shares) at Mar. 31, 2021			5,021,000
Ending balance at Mar. 31, 2021	$ 24,001		$ 0	(5,728)	149,283	(119,554)
Perpetual Redeemable Preferred Stock, Beginning balance (in shares) at Dec. 31, 2020	1,916,000
Perpetual Redeemable Preferred Stock, Beginning balance at Dec. 31, 2020	$ 21,500
Perpetual Redeemable Preferred Stock, Ending balance (in shares) at Sep. 30, 2021	1,916,000
Perpetual Redeemable Preferred Stock, Ending balance at Sep. 30, 2021	$ 21,979
Common Stock, Beginning balance (in shares) at Dec. 31, 2020			4,798,000
Beginning balance at Dec. 31, 2020	18,429		$ 0	(5,728)	149,143	(124,986)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	1,435
Common Stock, Ending balance (in shares) at Sep. 30, 2021			5,120,000
Ending balance at Sep. 30, 2021	$ 19,339		$ 0	(5,728)	148,618	(123,551)
Perpetual Redeemable Preferred Stock, Beginning balance (in shares) at Mar. 31, 2021	1,916,000
Perpetual Redeemable Preferred Stock, Beginning balance at Mar. 31, 2021	$ 21,979
Increase (Decrease) in Temporary Equity [Roll Forward]
Accrued dividends on redeemable preferred stock	479
Preferred stock dividends paid	$ (479)
Perpetual Redeemable Preferred Stock, Ending balance (in shares) at Jun. 30, 2021	1,916,000
Perpetual Redeemable Preferred Stock, Ending balance at Jun. 30, 2021	$ 21,979
Common Stock, Beginning balance (in shares) at Mar. 31, 2021			5,021,000
Beginning balance at Mar. 31, 2021	24,001		$ 0	(5,728)	149,283	(119,554)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	134				134
Shares issued under stock incentive plans, net of shares withheld for employee taxes (in shares)			20,000
Shares issued under stock incentive plans, net of shares withheld for employee taxes	(13)				(13)
Accrued dividends on redeemable preferred stock	(479)				(479)
Fees paid on issuance of rights agreement	(28)				(28)
Proceeds from the exercise of warrants (in shares)			33,000
Proceeds from the exercise of warrants	74				74
Net (loss) income	(1,856)					(1,856)
Common Stock, Ending balance (in shares) at Jun. 30, 2021			5,074,000
Ending balance at Jun. 30, 2021	21,833		$ 0	(5,728)	148,971	(121,410)
Increase (Decrease) in Temporary Equity [Roll Forward]
Accrued dividends on redeemable preferred stock	479
Preferred stock dividends paid	$ (479)
Perpetual Redeemable Preferred Stock, Ending balance (in shares) at Sep. 30, 2021	1,916,000
Perpetual Redeemable Preferred Stock, Ending balance at Sep. 30, 2021	$ 21,979
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	126				126
Shares issued under stock incentive plans, net of shares withheld for employee taxes (in shares)			46,000
Accrued dividends on redeemable preferred stock	(479)				(479)
Net (loss) income	(2,141)					(2,141)
Common Stock, Ending balance (in shares) at Sep. 30, 2021			5,120,000
Ending balance at Sep. 30, 2021	$ 19,339		$ 0	(5,728)	148,618	(123,551)
Perpetual Redeemable Preferred Stock, Beginning balance (in shares) at Dec. 31, 2021	1,916,000
Perpetual Redeemable Preferred Stock, Beginning balance at Dec. 31, 2021	$ 18,988
Increase (Decrease) in Temporary Equity [Roll Forward]
Accrued dividends on redeemable preferred stock	479
Preferred stock dividends paid	$ (479)
Perpetual Redeemable Preferred Stock, Ending balance (in shares) at Mar. 31, 2022	1,916,000
Perpetual Redeemable Preferred Stock, Ending balance at Mar. 31, 2022	$ 18,988
Common Stock, Beginning balance (in shares) at Dec. 31, 2021	5,805,916		5,805,000
Beginning balance at Dec. 31, 2021	$ 16,754		$ 0	(5,728)	150,451	(127,969)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	144				144
Shares issued under stock incentive plans, net of shares withheld for employee taxes (in shares)			49,000
Shares issued under stock incentive plans, net of shares withheld for employee taxes	(3)				(3)
Accrued dividends on redeemable preferred stock	(479)				(479)
Equity issuance costs	(450)				(450)
Proceeds from the sale of common stock, warrants, and exercise of over allotment options (in shares)			9,175,000
Proceeds from the sale of common stock, warrants, and exercise of over allotment options	13,198		$ 1		13,197
Net (loss) income	(3,701)					(3,701)
Preferred Stock, Ending balance (in shares) at Mar. 31, 2022		0
Common Stock, Ending balance (in shares) at Mar. 31, 2022			15,029,000
Ending balance at Mar. 31, 2022	$ 25,463	$ 0	$ 1	(5,728)	162,860	(131,670)
Perpetual Redeemable Preferred Stock, Beginning balance (in shares) at Dec. 31, 2021	1,916,000
Perpetual Redeemable Preferred Stock, Beginning balance at Dec. 31, 2021	$ 18,988
Common Stock, Beginning balance (in shares) at Dec. 31, 2021	5,805,916		5,805,000
Beginning balance at Dec. 31, 2021	$ 16,754		$ 0	(5,728)	150,451	(127,969)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	$ (7,161)
Preferred Stock, Ending balance (in shares) at Sep. 30, 2022		1,916,000
Common Stock, Ending balance (in shares) at Sep. 30, 2022	15,138,732		15,139,000
Ending balance at Sep. 30, 2022	$ 40,209	$ 18,988	$ 1	(5,728)	162,078	(135,130)
Perpetual Redeemable Preferred Stock, Beginning balance (in shares) at Mar. 31, 2022	1,916,000
Perpetual Redeemable Preferred Stock, Beginning balance at Mar. 31, 2022	$ 18,988
Increase (Decrease) in Temporary Equity [Roll Forward]
Reclassification of preferred stock to permanent equity (See Note 1) (in shares)	1,916,000
Reclassification of preferred stock to permanent equity (See Note 1)	$ (18,988)
Perpetual Redeemable Preferred Stock, Ending balance (in shares) at Jun. 30, 2022	0
Perpetual Redeemable Preferred Stock, Ending balance at Jun. 30, 2022	$ 0
Preferred Stock,, Beginning balance (in shares) at Mar. 31, 2022		0
Common Stock, Beginning balance (in shares) at Mar. 31, 2022			15,029,000
Beginning balance at Mar. 31, 2022	25,463	$ 0	$ 1	(5,728)	162,860	(131,670)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	72				72
Shares issued under stock incentive plans, net of shares withheld for employee taxes (in shares)			53,000
Accrued dividends on redeemable preferred stock	0	479			(479)
Preferred stock dividends paid	(479)	$ (479)
Reclassification of preferred stock to permanent equity (in shares)		1,916,000
Reclassification of preferred stock to permanent equity (See Note 1)	18,988	$ 18,988
Net (loss) income	(1,576)					(1,576)
Preferred Stock, Ending balance (in shares) at Jun. 30, 2022		1,916,000
Common Stock, Ending balance (in shares) at Jun. 30, 2022			15,082,000
Ending balance at Jun. 30, 2022	42,468	$ 18,988	$ 1	(5,728)	162,453	(133,246)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	106				106
Shares issued under stock incentive plans, net of shares withheld for employee taxes (in shares)			57,000
Shares issued under stock incentive plans, net of shares withheld for employee taxes	(2)				(2)
Dividends on preferred stock	(479)				(479)
Net (loss) income	$ (1,884)					(1,884)
Preferred Stock, Ending balance (in shares) at Sep. 30, 2022		1,916,000
Common Stock, Ending balance (in shares) at Sep. 30, 2022	15,138,732		15,139,000
Ending balance at Sep. 30, 2022	$ 40,209	$ 18,988	$ 1	$ (5,728)	$ 162,078	$ (135,130)