Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-8

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 860
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (b)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481420/860-30-50-1A

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483467/210-10-45-1

Summary of Significant Accounting Policies - Additional Information (Details)							6 Months Ended
	May 29, 2026 USD ($)	May 15, 2026 USD ($) $ / shares shares	May 14, 2026 USD ($)	Jan. 16, 2026 USD ($) shares	Aug. 29, 2025 USD ($)	Mar. 08, 2025 USD ($)	Jun. 30, 2026 USD ($) Facility $ / shares	Dec. 31, 2025 USD ($) $ / shares	Nov. 25, 2025 USD ($)	Sep. 30, 2025 USD ($)	Jan. 15, 2025 USD ($)	Jan. 14, 2025 $ / shares	Jan. 13, 2025 $ / shares
Accounting Policies [Line Items]
Other comprehensive income (loss)							$ 0
Aggregate principal balance held for investment at fair value							898,500,000	$ 909,900,000
Finance receivables held for investment at fair value							807,700,000	808,600,000
Cash and cash equivalents							16,359,000	10,384,000			$ 35,352,000
Restricted cash							58,927,000	$ 55,914,000			$ 26,089,000
Percentage of pro rata share												92.94%
Aggregate gross proceeds from issuance of preferred units				$ 22,500,000			$ 21,221,000
Common stock, par value \| $ / shares							$ 0.001	$ 0.001				$ 0.001	$ 0.001
Mudrick Capital Management, L.P.
Accounting Policies [Line Items]
Shareholder ownership percentage						76.50%						76.50%
ASU 2023-07
Accounting Policies [Line Items]
Change in accounting principle, accounting standards update, adopted [true false]							true
Change in accounting principle, accounting standards update, adoption date							Jan. 01, 2024
Change in accounting principle, accounting standards update, immaterial effect [true false]							true
ASU 2023-09
Accounting Policies [Line Items]
Change in accounting principle, accounting standards update, adopted [true false]							true
Change in accounting principle, accounting standards update, adoption date							Jan. 01, 2025
Change in accounting principle, accounting standards update, immaterial effect [true false]							true
Warehouse Credit Facility
Accounting Policies [Line Items]
Restricted cash							$ 10,439,000	$ 16,106,000
Borrowing capacity							10,500,000	$ 11,300,000
Delayed Draw Term Loan Facility \| Mudrick Capital Management, L.P.
Accounting Policies [Line Items]
Agreement maturity date						Dec. 31, 2027
Aggregate borrowing limit										$ 35,000,000
Debt instrument aggregate principal amount						$ 8,000,000
Borrowing capacity						$ 25,000,000				$ 35,000,000
Remaining amount under the facility							27,000,000
Series A Preferred Units
Accounting Policies [Line Items]
Stock issued \| shares				15,000
Series B Preferred Units
Accounting Policies [Line Items]
Stock issued \| shares				7,500
Virtu Americas LLC \| At-The Market Offering
Accounting Policies [Line Items]
Stock issued \| shares		444
Common stock, par value \| $ / shares		$ 0.001
Aggregate gross sales proceeds from issuance of common stock		$ 5,000
Virtu Americas LLC \| At-The Market Offering \| Maximum
Accounting Policies [Line Items]
Aggregate gross sales proceeds from issuance of common stock		$ 6,000,000					6,000,000
Senior Secured Delayed Draw Convertible Note due 2032
Accounting Policies [Line Items]
Agreement maturity date			Jun. 30, 2032
Delayed draw borrowing capacity	$ 11,500,000
Debt instrument aggregate principal amount			$ 28,500,000
Debt instrument interest rate			5.00%
Borrowing capacity			$ 50,000,000
Remaining amount under the facility	$ 10,000,000						$ 10,000,000
5.00% Unsecured Convertible Notes Due 2030
Accounting Policies [Line Items]
Agreement maturity date					Oct. 01, 2030
Debt instrument aggregate principal amount					$ 10,000,000
Debt instrument interest rate					5.00%
Delayed Draw Notes
Accounting Policies [Line Items]
Debt instrument aggregate principal amount									$ 10,500,000
UACC
Accounting Policies [Line Items]
Number of warehouse credit facilities \| Facility							3
UACC \| Warehouse Credit Facility
Accounting Policies [Line Items]
Cash deposits included in restricted cash							$ 58,800,000
Aggregate borrowing limit							600,000,000
Borrowing capacity							10,500,000
Outstanding borrowings							$ 240,800,000