Convertible Redeemable Preferred Stock And Stockholders' Equity - Additional Information (Detail) - USD ($)								3 Months Ended		12 Months Ended
	Feb. 15, 2024	Dec. 06, 2023	Sep. 18, 2023	Sep. 13, 2023	May 26, 2023	May 24, 2023	Jan. 09, 2023	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Sep. 18, 2024	Feb. 12, 2024	Jun. 05, 2023	Dec. 31, 2022
Temporary Equity And Stockholders Equity [Line Items]
Common stock, shares authorized								180,000,000		180,000,000
Common stock, shares issued								33,257,000		3,416,000
Approximate fair value approximate of the current stock price	95.00%
Common stock value								$ 33,000		$ 3,000
Proceeds from the exercise of common stock warrants								$ 8,000	$ 14,000
Common stock, par value								$ 0.001		$ 0.001
Change in fair value of warrants								$ 556,000	0
Issuance costs for common stock warrants								$ 830,000	0
Convertible preferred stock, shares issued								1,000,000
Common stock authorized for issuance								908
Additional paid-in-capital								$ 321,957,000		$ 317,103,000
Compensation expense related to stock options								100,000	700,000
Total unrecognized compensation expense								200,000	$ 1,000,000
Accrued liabilities								7,589,000		7,518,000		$ 200,000
Other liabilities								$ 87,000		$ 79,000
Unrecognized share based compensation expense to be recognized over weighted-average period								1 year 1 month 6 days
Common stock offered								24,564,370	26,693
Proceeds from Issuance of Common Stock								$ 2,784,000	$ 8,503,000
Allocated Share-based Compensation Expense								$ 113,000	691,000
Series H Preferred Stock [Member]
Temporary Equity And Stockholders Equity [Line Items]
Temporary equity preferred stock, shares authorized								370,000		370,000
Temporary Equity, Redemption Price Per Share								$ 0.001
Equity raise of gross proceeds					$ 4,600,000
Temporary conversion of preferred stock into common stock								190,000
Conversion of preferred stock upon converted to common stock								700,000
Temporary conversion of warrants into share								20,000
Proceeds from issuance of warrants						$ 3,400,000
Warrants And Rights Outstanding						$ 50,000
Conversion price						$ 13.98
Proceeds from the exercise of common stock warrants						$ 2,700,000
Preferred Stock Redemption Discount						10,500,000
Preferred Stock, Redemption Amount						7,800,000
Proceeds of common stock and warrants						4,600,000
Warrants issued in connection with debt instruments						3,400,000
Allocated to the warrants based upon fair values						1,200,000
Proceeds allocated to the warrants based upon fair values						$ 3,400,000
Weighted average exercise price of warrants					$ 13	$ 13
Paid in-kind Dividends Percentage						20.00%
Risk-free interest rate						48.00%
Series G Preferred stock, shares authorized								370,000		370,000
Preferred stock, par value					0.001	$ 0.001		$ 0.001		$ 0.001
Convertible preferred stock, shares issued								5,000		5,000
Convertible preferred stock, shares outstanding								5,000		5,000
Proceeds from offering						$ 4,600,000
Proceeds from offering from broker fees						$ 900,000
Preferred Stock, Convertible, Conversion Price, Decrease						$ 50
Combined purchase price of share and warrant					$ (0.5)	$ (0.5)
Series J Preferred Stock [Member]
Temporary Equity And Stockholders Equity [Line Items]
Temporary equity preferred stock, shares authorized								160,000
Temporary Equity, Redemption Price Per Share								$ 0.001
Equity raise of gross proceeds			$ 4,500,000
Convertible preferred stock, Common shares issued upon conversion								4,306
Temporary conversion of preferred stock into common stock								66,465
Conversion of preferred stock upon converted to common stock								2,000,000
Temporary conversion of warrants into share								2,980
Proceeds from issuance of warrants				$ 3,500,000
Warrants And Rights Outstanding				$ 100,000
Conversion price				$ 3.26
Proceeds from the exercise of common stock warrants				$ 2,700,000
Preferred Stock Redemption Discount				10,300,000
Preferred Stock, Redemption Amount				7,600,000
Proceeds of common stock and warrants				4,500,000
Warrants issued in connection with debt instruments				3,500,000
Allocated to the warrants based upon fair values				1,000,000
Proceeds allocated to the warrants based upon fair values				$ 3,500,000
Weighted average exercise price of warrants			$ 30	$ 30
Paid in-kind Dividends Percentage				20.00%
Risk-free interest rate				40.00%
Series G Preferred stock, shares authorized								160,000
Preferred stock, par value				$ 0.001							$ 0.001
Proceeds from offering				$ 4,500,000
Proceeds from offering from broker fees				$ 1,000,000
Preferred Stock, Convertible, Conversion Price, Decrease				$ 100
Combined purchase price of share and warrant			(0.5)	$ (0.5)
Series I Preferred Stock [Member]
Temporary Equity And Stockholders Equity [Line Items]
Temporary equity preferred stock, shares authorized								125,000
Temporary Equity, Redemption Price Per Share								$ 0.001
Series G Preferred stock, shares authorized								125,000
Preferred stock, par value													$ 0.001
Series J Warrants [Member]
Temporary Equity And Stockholders Equity [Line Items]
Temporary conversion of warrants into share								5,960
Proceeds from issuance of warrants				$ 1,000,000
Proceeds from the exercise of common stock warrants				800,000
Warrants issued in connection with debt instruments				1,000,000
Series H Warrants [Member]
Temporary Equity And Stockholders Equity [Line Items]
Temporary conversion of warrants into share								40,000
Proceeds from issuance of warrants						$ 1,200,000
Proceeds from the exercise of common stock warrants						1,000,000
Warrants issued in connection with debt instruments						$ 1,200,000
Class A Common Warrants [Member]
Temporary Equity And Stockholders Equity [Line Items]
Weighted average exercise price of warrants	$ 0.66
Class B Common Warrants [Member]
Temporary Equity And Stockholders Equity [Line Items]
Warrant issued		2,221,880
Weighted average exercise price of warrants	$ 0.748
December Two Thousand Twenty Three Registered Direct Offering [Member]
Temporary Equity And Stockholders Equity [Line Items]
Equity raise of gross proceeds		$ 1,400,000
Warrant issued		2,221,880
Weighted average exercise price of warrants		$ 1.23
Sale of common stock and pre-funded warrants, net of fees ,shares		331,000
Combined purchase price of share and warrant		$ 1.229
Net Proceeds from the Issuance of Common Stock, Pre-funded Warrants, and Warrants in Excess of Par		$ 1,000,000
Adjusted exercise price of warrants		$ 0.2256
September Two Thousand Twenty Three Public Offering [Member]
Temporary Equity And Stockholders Equity [Line Items]
Equity raise of gross proceeds				1,000,000
Issuance costs for common stock warrants				$ 200,000
May Two Thousand Twenty Three Public Offering [Member]
Temporary Equity And Stockholders Equity [Line Items]
Equity raise of gross proceeds					$ 1,200,000
Issuance costs for common stock warrants					$ 200,000
January 2023 Warrant [Member]
Temporary Equity And Stockholders Equity [Line Items]
Equity raise of gross proceeds							$ 8,500,000
Warrant issued							114,035
Weighted average exercise price of warrants							$ 1
Common stock, par value							$ 0.001
Sale of common stock and pre-funded warrants, net of fees ,shares							171,678
Proceeds from offering							$ 9,900,000
Combined purchase price of share and warrant							$ 35
January 2023 Prefunded Warrant [Member]
Temporary Equity And Stockholders Equity [Line Items]
Combined purchase price of share and warrant							$ 34
Underwritten Public Offering [Member]
Temporary Equity And Stockholders Equity [Line Items]
Proceeds from Issuance of Common Stock	$ 7,000,000
Underwritten Public Offering [Member] | Series H Preferred Stock [Member]
Temporary Equity And Stockholders Equity [Line Items]
Weighted average exercise price of warrants					$ 26	$ 26
Sale of common stock and pre-funded warrants, net of fees ,shares						175,000
Underwritten Public Offering [Member] | Series J Preferred Stock [Member]
Temporary Equity And Stockholders Equity [Line Items]
Weighted average exercise price of warrants			$ 60	$ 60
Sale of common stock and pre-funded warrants, net of fees ,shares				75,000
Underwritten Public Offering [Member] | September Two Thousand Twenty Three Public Offering [Member]
Temporary Equity And Stockholders Equity [Line Items]
Sale of common stock and pre-funded warrants, net of fees ,shares			75,000
Underwritten Public Offering [Member] | May Two Thousand Twenty Three Public Offering [Member]
Temporary Equity And Stockholders Equity [Line Items]
Sale of common stock and pre-funded warrants, net of fees ,shares					175,000
Maximum [Member]
Temporary Equity And Stockholders Equity [Line Items]
Temporary equity preferred stock, shares authorized								1,000,000
Series G Preferred stock, shares authorized								1,000,000
2002 Stock Incentive Plan
Temporary Equity And Stockholders Equity [Line Items]
Common stock authorized for issuance								1,244
Options available for future grants								0
2018 Long-Term Incentive Plan
Temporary Equity And Stockholders Equity [Line Items]
Increase in Number of Units Available for Issuance								53,677
Options and restricted stock units outstanding								47,238
Restricted Stock Units (RSUs)
Temporary Equity And Stockholders Equity [Line Items]
Options and restricted stock units outstanding								138
RSUs were cancelled								1,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period								3,000
Phantom Share Units (PSUs)
Temporary Equity And Stockholders Equity [Line Items]
Additional paid-in-capital										$ 200,000				$ 100,000
Accrued liabilities									600,000	$ 500,000
Cash									$ 600,000
RSUs were cancelled									828	2,113
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period									291
Allocated Share-based Compensation Expense								$ 100,000	$ 100,000
Stock Appreciation Rights (SARs)
Temporary Equity And Stockholders Equity [Line Items]
Stock Option Outatanding									236,000
Allocated Share-based Compensation Expense								$ 0	$ 0
Stock Options
Temporary Equity And Stockholders Equity [Line Items]
Stock options granted								0	0
Pre Funded Warrants [Member]
Temporary Equity And Stockholders Equity [Line Items]
Equity raise of gross proceeds								$ 3,700,000
Volatility	85.00%
Sale of Stock, Price Per Share	$ 0.439
Weighted average exercise price of warrants	0.001
Alternative cashless exercise price	$ 0.95
Issuance costs for common stock warrants	$ 600,000
Warrant issued	8,205,000
Pre Funded Warrants [Member] | December Two Thousand Twenty Three Registered Direct Offering [Member]
Temporary Equity And Stockholders Equity [Line Items]
Warrant issued		779,940
Weighted average exercise price of warrants		$ 0.001
Common Stock
Temporary Equity And Stockholders Equity [Line Items]
Common stock, shares issued								33,257,000	263,000	3,416,000				77,000
Common stock, par value	$ 0.001
Sale of common stock and pre-funded warrants, net of fees ,shares								7,795,000	172,000
Common Stock | Underwritten Public Offering [Member]
Temporary Equity And Stockholders Equity [Line Items]
Sale of common stock and pre-funded warrants, net of fees ,shares	7,795,000
Common Stock | 2018 Long-Term Incentive Plan
Temporary Equity And Stockholders Equity [Line Items]
Common stock authorized for share issued								11,353
Common stock authorized for issuance								112,268