Convertible Redeemable Preferred Stock And Stockholders' Equity - Additional Information (Detail)

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Convertible Redeemable Preferred Stock And Stockholders' Equity - Additional Information (Detail)																	1 Months Ended				6 Months Ended	12 Months Ended
	Dec. 06, 2023 USD ($) $ / shares shares	Sep. 18, 2023 USD ($) $ / shares shares	Sep. 13, 2023 USD ($) $ / shares shares	May 26, 2023 USD ($) $ / shares shares	May 24, 2023 USD ($) $ / shares shares	Jan. 09, 2023 USD ($) $ / shares shares	Jun. 27, 2022 USD ($) $ / shares shares	Feb. 10, 2021 USD ($) $ / shares shares	Sep. 28, 2020 USD ($) $ / shares	Jul. 23, 2020 USD ($) $ / shares shares	Jun. 10, 2020	Jun. 08, 2020 USD ($) $ / shares shares	Nov. 14, 2018 USD ($) d $ / shares shares	Nov. 09, 2018 USD ($) d $ / shares shares	Sep. 27, 2018 USD ($) $ / shares	Mar. 06, 2018 USD ($) $ / shares shares	Aug. 31, 2020 $ / shares	Mar. 31, 2020 USD ($) $ / shares shares	Nov. 30, 2019 $ / shares shares	Oct. 31, 2019 $ / shares	Jun. 30, 2020 $ / shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Jun. 05, 2023 $ / shares	Mar. 01, 2022 $ / shares	Dec. 31, 2020 shares	May 31, 2019 shares
Redeemable Noncontrolling Interest [Line Items]
Convertible preferred stock, shares issued and sold																						1,000,000
Equity raise of gross proceeds | $								$ 14,400,000
Common stock, par value $0.001 per share | $																						$ 3,000	$ 0
Warrants Exercisable																2,500,000
Common stock, shares issued																						3,416,000	77,000
Common stock, shares authorized																						180,000,000	180,000,000
Share price | $ / shares								$ 2,575
Common stock, par value | $ / shares																						$ 0.001	$ 0.001
Warrants adjusted exercise price | $ / shares																					$ 1,500
Common stock, shares outstanding																						3,416,000	77,000
Issuance costs for warrants | $																						$ 447,000	$ 0	$ 0
Paid or declared dividends | $																						0	0	0
Proceeds from the exercise of warrants | $																						114,000	1,000	16,562,000
Change in fair value of warrants | $																						(494,000)	$ 0	$ 0
Volatility																								111.00%
Expected term (years)																								6 years 1 month 6 days
Risk-free interest rate																								1.00%
Other offering expenses | $												$ 700,000
Net Proceeds from Public Offering 2023 | $																						$ 16,800,000
Original Western Alliance Warrant
Redeemable Noncontrolling Interest [Line Items]
Conversion price | $ / shares																$ 5,875
Exercise price of warrants per share | $ / shares															$ 5,325
Warrants expire date															Sep. 27, 2028
SWK Warrants
Redeemable Noncontrolling Interest [Line Items]
Convertible preferred stock, shares issued and sold														148					25
Warrants adjusted strike price | $ / shares																		$ 1,225	$ 2,500	$ 1
Warrant issued																			63,779
Warrants fair value assumptions, risk-free interest rate														3.13%
Warrants Exercisable																			2,500,000
Warrants expiration period														8 years
Warrants fair value assumptions, expected volatility rate														81.79%
Warrants fair value assumptions annual dividend per share | $ / shares														$ 0
Exercise price of warrants per share | $ / shares														$ 3,350				$ 975
Change in fair value of warrants | $														$ 400,000
Number of trading days of average closing price of common stock | d														10
Additional Warrants issued to purchase shares of common stock																		63,779
Warrants expire date														Nov. 09, 2026
Warrants issued to purchase shares of common stock														372,023				487,198
DPG Warrants
Redeemable Noncontrolling Interest [Line Items]
Convertible preferred stock, shares issued and sold													111
Warrants fair value assumptions, risk-free interest rate														3.13%
Finder's fee | $													$ 400,000
Adjusted exercise price of warrants | $ / shares																	$ 950					$ 1,550
Warrants Exercisable																						2,500,000
Warrants expiration period														8 years
Warrants fair value assumptions, expected volatility rate														81.79%
Warrants fair value assumptions annual dividend per share | $ / shares														$ 0
Exercise price of warrants per share | $ / shares													$ 3,350
Change in fair value of warrants | $														$ 300,000
Number of trading days of average closing price of common stock | d													10
Warrants expire date													Nov. 09, 2026
Warrants issued to purchase shares of common stock													279,851
SWK Warrants and DPG Warrants
Redeemable Noncontrolling Interest [Line Items]
Convertible Preferred Stock Converted to Common stock | $													$ 59
Exercise price of warrants per share | $ / shares													$ 5,425
Warrants issued to purchase shares of common stock																												149,727
Common Stock
Redeemable Noncontrolling Interest [Line Items]
Common stock, shares issued								5,600														3,416,000	77,000	61,000			39,000
Sale of common stock, net, shares																						503,000	7,000	6,000
Other offering expenses | $								$ 1,100,000
Common Stock | SWK Warrants
Redeemable Noncontrolling Interest [Line Items]
Exercisable shares of common stock																			194
June 2020 Warrants
Redeemable Noncontrolling Interest [Line Items]
Conversion Of Preferred Stock Into Common Stock																								2,980
Exercisable shares of common stock																						0	0	7,500,000
Warrants Exercisable																								2,500,000
Proceeds of common stock and warrants | $																						$ 6,200,000
Exercise price of warrants per share | $ / shares																						$ 1,050
Allocation to preferred stock and warrants before issuance costs | $																						$ 3,000,000
Volatility																						109.80%
Expected term (years)																						5 years
Closing price of common stock | $ / shares																						$ 1,350
Dividend yield																						0.00%
Risk-free interest rate																						0.45%
Allocation to common stock and warrants before issuance costs | $																						$ 3,900,000
Maximum
Redeemable Noncontrolling Interest [Line Items]
Temporary equity preferred stock, shares authorized																						1,000,000
Maximum | Original Western Alliance Warrant
Redeemable Noncontrolling Interest [Line Items]
Warrants issued to purchase shares of common stock equal value | $															$ 120,000	$ 120,000
Maximum | SWK Warrants
Redeemable Noncontrolling Interest [Line Items]
Exercise price of warrants per share | $ / shares																						$ 2,200
Change in fair value of warrants | $																		$ 100,000
Maximum | DPG Warrants
Redeemable Noncontrolling Interest [Line Items]
Exercise price of warrants per share | $ / shares																						3,550
Minimum | SWK Warrants
Redeemable Noncontrolling Interest [Line Items]
Exercise price of warrants per share | $ / shares																						3,350
Minimum | DPG Warrants
Redeemable Noncontrolling Interest [Line Items]
Exercise price of warrants per share | $ / shares																						$ 5,425
Series G Preferred Stock [Member]
Redeemable Noncontrolling Interest [Line Items]
Temporary Equity, Par or Stated Value Per Share | $ / shares																										$ 0.001
Series H Preferred Stock [Member]
Redeemable Noncontrolling Interest [Line Items]
Convertible preferred stock, shares issued and sold																						5,000
Temporary equity preferred stock, shares outstanding																						5,000
Temporary Equity, Par or Stated Value Per Share | $ / shares				$ 0.001	$ 0.001																	$ 0.001
Temporary equity preferred stock, shares authorized																						370,000
Temporary Equity, Redemption Price Per Share | $ / shares																						$ 0.001
Warrants And Rights Outstanding | $					$ 50,000
Conversion price | $ / shares					$ 13.98
Assets Available For Distribution																						100.00%
Equity raise of gross proceeds | $				$ 4,600,000
Proceeds of common stock and warrants | $					$ 4,600,000
Conversion of preferred stock upon converted to common stock																						700,000
Proceeds allocated to the warrants based upon fair values | $					3,400,000
Proceeds from issuance of warrants | $					3,400,000
Allocated to the warrants based upon fair values | $					$ 1,200,000
Exercise price of warrants per share | $ / shares				$ 13	$ 13
Proceeds from the exercise of warrants | $					$ 2,700,000
Preferred Stock Redemption Discount | $					10,500,000
Preferred Stock Redemption Amount | $					$ 7,800,000
Temporary conversion of warrants into share																						20,000
Temporary conversion of preferred stock into common stock																						190,000
Risk-free interest rate					48.00%
Paid in-kind Dividends Percentage					20.00%
Net Proceeds from Public Offering 2023 | $					$ 4,600,000
Proceeds from offering from broker fees | $					$ 900,000
Combined purchase price of share and warrant | $ / shares				0.5	$ 0.5
Preferred Stock, Convertible, Conversion Price | $ / shares					$ 50																	$ 50
Series H Preferred Stock [Member] | Common Stock
Redeemable Noncontrolling Interest [Line Items]
Temporary conversion of preferred stock into common stock																						679,542
Series H Warrants [Member]
Redeemable Noncontrolling Interest [Line Items]
Proceeds from issuance of warrants | $					$ 1,200,000
Proceeds from the exercise of warrants | $					$ 1,000,000
Temporary conversion of warrants into share																						40,000
Series I Preferred Stock [Member]
Redeemable Noncontrolling Interest [Line Items]
Temporary Equity, Par or Stated Value Per Share | $ / shares																									$ 0.001
Temporary equity preferred stock, shares authorized																						125,000
Temporary Equity, Redemption Price Per Share | $ / shares																						$ 0.001
Series J Convertible Preferred Stock [Member]
Redeemable Noncontrolling Interest [Line Items]
Convertible preferred stock, shares issued and sold																						14,606
Temporary equity preferred stock, shares outstanding																						14,606
Temporary Equity, Par or Stated Value Per Share | $ / shares		$ 0.001	$ 0.001
Temporary equity preferred stock, shares authorized																						160,000
Temporary Equity, Redemption Price Per Share | $ / shares																						$ 0.001
Warrants And Rights Outstanding | $			$ 100,000
Conversion price | $ / shares			$ 3.26
Assets Available For Distribution																						100.00%
Equity raise of gross proceeds | $		$ 4,500,000
Proceeds of common stock and warrants | $			$ 4,500,000
Conversion of preferred stock upon converted to common stock																						2,000,000
Proceeds allocated to the warrants based upon fair values | $			3,500,000
Proceeds from issuance of warrants | $			3,500,000
Allocated to the warrants based upon fair values | $			$ 1,000,000
Exercise price of warrants per share | $ / shares		$ 30	$ 30
Convertible preferred stock, shares issued upon conversion																						3,091
Proceeds from the exercise of warrants | $			$ 2,700,000
Preferred Stock Redemption Discount | $			10,300,000
Preferred Stock Redemption Amount | $			$ 7,600,000
Temporary conversion of warrants into share																						2,980
Temporary conversion of preferred stock into common stock																						66,465
Risk-free interest rate			40.00%
Paid in-kind Dividends Percentage			20.00%
Net Proceeds from Public Offering 2023 | $			$ 4,500,000
Proceeds from offering from broker fees | $			$ 1,000,000
Combined purchase price of share and warrant | $ / shares		0.5	$ 0.5
Preferred Stock, Convertible, Conversion Price | $ / shares			$ 100																			$ 100
Series J Convertible Preferred Stock [Member] | Common Stock
Redeemable Noncontrolling Interest [Line Items]
Temporary conversion of preferred stock into common stock																						2,038,804
Series J Warrants [Member]
Redeemable Noncontrolling Interest [Line Items]
Proceeds from issuance of warrants | $			$ 1,000,000
Proceeds from the exercise of warrants | $			$ 800,000
Temporary conversion of warrants into share																						5,960
Series F Preferred Stock [Member]
Redeemable Noncontrolling Interest [Line Items]
Conversion Of Preferred Stock Into Common Stock										18,000
Temporary equity preferred stock, shares outstanding																								251
Preferred Stock, No Par Value | $ / shares										$ 0.001
Common stock, par value $0.001 per share | $										$ 1,000,000
Proceeds of common stock and warrants | $										18,000,000
Proceeds from issuance of equity securities | $																						$ 18,000,000
Broker fees and related expenses | $																						1,900,000
Proceeds allocated to the warrants based upon fair values | $										2,700,000
Sale of common stock, net, shares																								1,000
Deemed dividend on convertible preferred stock | $										2,700,000													$ 200,000	$ 500,000
Proceeds from issuance of warrants | $										$ 2,700,000
June 2022 Warrants [Member]
Redeemable Noncontrolling Interest [Line Items]
Direct Offering							6,787,000
Pre Funded Warrants to Purchase							7,266,000
Concurrent Private Placement Warrants							14,054,000
Sale of common stock, net, shares							6,787,000
Common stock, par value | $ / shares							$ 0.001
Exercise price of warrants per share | $ / shares							$ 0.1
Net Proceeds from Public Offering 2023 | $							$ 6,500,000
Combined purchase price of share and warrant | $ / shares							$ 462.5
June 2022 Pre-Funded Warrants [Member]
Redeemable Noncontrolling Interest [Line Items]
Warrant issued							7,266,000
Equity raise of gross proceeds | $							$ 5,600,000
Combined purchase price of share and warrant | $ / shares							$ 462.4
Series F Preferred Stock And July Two Thousand Twenty [Member]
Redeemable Noncontrolling Interest [Line Items]
Sale of common stock, net, shares										18,000
Exercise price of warrants per share | $ / shares										$ 850
Volatility										109.80%
Expected term (years)										5 years
Closing price of common stock | $ / shares										$ 1,100
Risk-free interest rate										0.27%
Series F Preferred Stock And July Two Thousand Twenty [Member] | June 2020 Warrants
Redeemable Noncontrolling Interest [Line Items]
Warrant issued										45,000,000
July 2020 Warrants
Redeemable Noncontrolling Interest [Line Items]
Conversion Of Preferred Stock Into Common Stock										2,500
Exercisable shares of common stock																								28,100,000
Warrant issued										45,000,000
Proceeds from issuance of warrants | $										$ 15,300,000
Allocated to the warrants based upon fair values | $										$ 15,300,000
Exercise price of warrants per share | $ / shares										$ 1,000
Issuance costs for warrants | $																						1,600,000
Allocation to preferred stock and warrants before issuance costs | $																						15,300,000
Change in fair value of warrants | $									$ 5,800,000
Equity, Fair Value Adjustment | $									$ 9,500,000
Dividend yield										0.00%
Series F Preferred Stock And July Two Thousand Twenty Amendment [Member]
Redeemable Noncontrolling Interest [Line Items]
Convertible Preferred Stock Converted to Common stock | $																								$ 11,225
Exercise price of warrants per share | $ / shares									$ 525
Volatility									109.50%
Expected term (years)									5 years
Closing price of common stock | $ / shares									$ 700
Dividend yield									0.00%
Risk-free interest rate									0.26%
Convertible Preferred Stock [Member]
Redeemable Noncontrolling Interest [Line Items]
Temporary equity preferred stock, shares authorized										18,000
Conversion price | $ / shares										$ 1,000														$ 2,500
Allocation to preferred stock and warrants before issuance costs | $																						$ 2,700,000
January 2023 Warrant [Member]
Redeemable Noncontrolling Interest [Line Items]
Warrant issued						114,035
Sale of common stock, net, shares						171,678
Common stock, par value | $ / shares						$ 35
Exercise price of warrants per share | $ / shares						$ 1
Net Proceeds from Public Offering 2023 | $						$ 9,900,000
Combined purchase price of share and warrant | $ / shares						$ 34
2020 Annual Meeting [Member] | Common Stock
Redeemable Noncontrolling Interest [Line Items]
Common stock, shares issued																						3,415,948
Common stock, shares outstanding																						3,415,930
2020 Annual Meeting [Member] | Maximum
Redeemable Noncontrolling Interest [Line Items]
Common stock, shares authorized																											180,000,000
2020 Annual Meeting [Member] | Minimum
Redeemable Noncontrolling Interest [Line Items]
Common stock, shares authorized																											40,000,000
December 2023 Registered Direct Offering [Member]
Redeemable Noncontrolling Interest [Line Items]
Warrant issued	2,221,880
Equity raise of gross proceeds | $	$ 1,200,000
Sale of common stock, net, shares	331,000
Exercise price of warrants per share | $ / shares	$ 1.23
Combined purchase price of share and warrant | $ / shares	$ 1.229
December 2023 Registered Direct Offering [Member] | Pre Funded Warrants [Member]
Redeemable Noncontrolling Interest [Line Items]
Warrant issued	779,940
Exercise price of warrants per share | $ / shares	$ 0.001
Private Placement
Redeemable Noncontrolling Interest [Line Items]
Temporary equity numbers of shares sold												4,320
Warrant issued												10,800,000
Exercise price of warrants per share | $ / shares												$ 1,288
Private Placement | June 2022 Warrants [Member]
Redeemable Noncontrolling Interest [Line Items]
Warrant issued							14,054,000
Exercise price of warrants per share | $ / shares							$ 0.1
Combined purchase price of share and warrant | $ / shares							462.5
Private Placement | June 2022 Pre-Funded Warrants [Member]
Redeemable Noncontrolling Interest [Line Items]
Combined purchase price of share and warrant | $ / shares							$ 462.4
Public Offering
Redeemable Noncontrolling Interest [Line Items]
Net Proceeds from Public Offering 2023 | $												$ 6,900,000
Warrant expiration date											Jun. 10, 2025
Combined purchase price of share and warrant | $ / shares												$ 1,600
Public Offering | Series H Preferred Stock [Member]
Redeemable Noncontrolling Interest [Line Items]
Sale of common stock, net, shares					175,000
Exercise price of warrants per share | $ / shares				$ 26	$ 26
Public Offering | Series J Convertible Preferred Stock [Member]
Redeemable Noncontrolling Interest [Line Items]
Sale of common stock, net, shares			75,000
Exercise price of warrants per share | $ / shares		$ 60	$ 60
Public Offering | May 2023 Offering [membr]
Redeemable Noncontrolling Interest [Line Items]
Sale of common stock, net, shares				175,000
Public Offering | September 2023 Offering [Member]
Redeemable Noncontrolling Interest [Line Items]
Sale of common stock, net, shares		75,000