Claims Financing Obligations and Notes Payable - Yorkville Standby Equity Purchase Agreement - Additional Information (Detail) - USD ($)							1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 26, 2025	Apr. 10, 2025	Apr. 08, 2024	Apr. 01, 2024	Mar. 26, 2024	Nov. 14, 2023	Jul. 16, 2025	Nov. 14, 2023	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2023	Aug. 08, 2025	Aug. 05, 2025	Jun. 27, 2025	Jun. 05, 2025	Dec. 31, 2024	Apr. 12, 2024	Dec. 11, 2023	Nov. 15, 2023
Claims Financing Obligations and Notes Payable [Line Items]
Variable price per share						$ 1		$ 1
Committed to purchase shares									$ 249,000	$ 2,354,000	$ 2,190,000	$ 3,324,000
Proceeds from debt financing											8,513,000	9,250,000
Fair value of combined embedded derivative									100,000		100,000							$ 200,000
Change in fair value of embedded derivative resulting in other income (loss)									36,000	$ 75,000	100,000	$ (78,000)
YA II PN, Ltd [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Aggregate principal amount									$ 12,300,000		$ 12,300,000							12,200,000
Standby Equity Purchase Agreement [Member] | YA II PN, Ltd [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Floor price trigger																	$ 1		$ 3.75
Aggregate principal amount	$ 3,000,000					$ 15,000,000		$ 15,000,000					$ 10,000,000					$ 5,000,000
Proceeds from debt financing			$ 4,750,000										$ 9,480,000
Stock sold		2,000,000
Standby Equity Purchase Agreement [Member] | YA II PN, Ltd [Member] | VRM [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Percentage of proceeds from repayment of debt				25.00%
Convertible Debt [Member] | Standby Equity Purchase Agreement [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Percentag of aggregate proceeds used to pay amounts outstanding								50.00%
Percentage of proceeds used to pay amounts due under Convertible Notes								50.00%
Convertible Debt [Member] | Standby Equity Purchase Agreement [Member] | YA II PN, Ltd [Member]
Claims Financing Obligations and Notes Payable [Line Items]
VWAP of shares during prior date								120.00%
VWAP seven consecutive trading days								95.00%
Fixed Price Per Share			$ 37.625																	$ 92.84	$ 200.5625
Extended maturity date		Nov. 30, 2026
Aggregate principal amount																$ 750,000			$ 13,000,000
Percentag of aggregate proceeds used to pay amounts outstanding					50.00%
Percentage of proceeds used to pay amounts due under Convertible Notes					50.00%
Percentage of payment of aggregate purchase price of shares								9.99%
Seventh trading day after the Trigger								$ 1,500,000
Premium and accrued and unpaid interest								5.00%
Exchange Cap or the amount of shares of common stock								9.99%
Payment of advance for shares of common stock in event of termination						250,000,000		$ 250,000,000
Class A Issuances, shares											700,000
Reduction in principal											$ 600,000
Fund operations											$ 700,000
Stock sold											2,000,000
Fourth Convertible Notes | Standby Equity Purchase Agreement [Member] | YA II PN, Ltd [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Aggregate principal amount	750,000
Subsequent Event [Member] | Standby Equity Purchase Agreement [Member] | YA II PN, Ltd [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Floor price trigger															$ 0.5
Subsequent Event [Member] | Convertible Debt [Member] | Standby Equity Purchase Agreement [Member] | YA II PN, Ltd [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Aggregate principal amount							$ 2,100,000
VWAP five consecutive trading days							95.00%
Exchange Cap or the amount of shares of common stock							9.99%
Conversion price per share							$ 0.5
Subsequent Event [Member] | Fifth Convertible Notes | Standby Equity Purchase Agreement [Member] | YA II PN, Ltd [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Aggregate principal amount							$ 750,000
Subsequent Event [Member] | Sixth Convertible Notes | Standby Equity Purchase Agreement [Member] | YA II PN, Ltd [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Aggregate principal amount														$ 750,000
Minimum [Member] | Convertible Debt [Member] | Standby Equity Purchase Agreement [Member] | YA II PN, Ltd [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Sale of stock, price per share									$ 1.33		$ 1.33
Maximum [Member] | YA II PN, Ltd [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Committed to purchase shares						$ 250,000,000
Maximum [Member] | Convertible Debt [Member] | Standby Equity Purchase Agreement [Member] | YA II PN, Ltd [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Sale of stock, price per share									$ 2.51		$ 2.51
Nomura Promissory Note [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Aggregate principal amount					$ 33,700,000
Nomura Promissory Note [Member] | Standby Equity Purchase Agreement [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Aggregate amount outstanding under cash proceeds	$ 3,000,000
Common Stock [Member] | Standby Equity Purchase Agreement [Member] | YA II PN, Ltd [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Stock purchased price						98.00%
Minimum VWAP of shares						97.00%
Mandatory minimum amount						100.00%
Common Class A [Member] | Common Stock [Member]
Claims Financing Obligations and Notes Payable [Line Items]
Class A Issuances, shares									188,406	119,797	2,735,562	158,848