Income Taxes (Tables)

12 Months Ended

Dec. 31, 2025

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The Company's provision for income taxes for the years ended December 31, 2025 and 2024 was as follows:

	Years Ended December 31,
	2025		2024
	(in thousands)
Current:
Federal	$	—	$	—
State	—		205
Foreign	125		165
Total current	125		370
Deferred:
Federal	—		—
State	—		—
Total deferred	—		—
Total provision for income taxes	$	125	$	370

Schedule of Effective Income Tax Rate Reconciliation

The provision for income taxes differed from the amount computed by applying the federal statutory income tax rate of 21% to loss before income taxes due to the following items for the years ended December 31, 2025 and 2024:

	Years Ended December 31,
	2025				2024
	($ in thousands)
United States statutory tax rate	$	(14,728)	21.00	%	$	(11,938)	21.00	%
State and local income taxes, net of federal income tax effect (1)	—		—		162		-0.29
Foreign tax effects:
Other foreign jurisdictions	125		-0.18		165		-0.29
Changes in valuation allowances	6,822		-9.73		10,046		-17.67
Nontaxable or nondeductible items:
Stock option deduction	(902)		1.29		1,288		-2.27
Warrant fair market value remeasurement	2,868		-4.09		591		-1.04
(Income)/loss on EMI	—		—		(185)		0.32
Executive compensation limitation	2,066		-2.95		324		-0.57
Other	257		-0.37		176		-0.31
Other adjustments:
Adjustment of deferred tax liabilities - other	279		-0.40		(259)		0.46
Adjustment of deferred tax assets - capital loss expiration	3,338		-4.76		—		—
Effective Tax Rate	$	125	-0.18	%	$	370	-0.65	%

(1) State taxes in Virginia made up the majority (greater than 50 percent) of the tax effect in this category.

Schedule of Cash Flow, Supplemental Disclosures

Income taxes paid (net of refunds) for the years ended December 31, 2025 and 2024 were as follows:

	Years Ended December 31,
	2025		2024
	(in thousands)
Federal	$	—	$	—
State(1)	20		376
Foreign(2)	177		100

(1) All state income taxes paid were paid to Virginia for the years ended December 31, 2025 and 2024.

(2) All foreign income taxes paid were paid to the United Kingdom for the years ended December 31, 2025 and 2024.

Schedule of Deferred Tax Assets and Liabilities

Deferred tax assets and liabilities as of December 31, 2025 and 2024, consisted of the following:

	December 31,
	2025		2024
	(in thousands)
Deferred tax assets:
Net operating loss carryforwards	$	84,257	$	73,482
Sec. 163(j) carryforwards	14,330		11,603
Accruals and reserves	1,406		1,664
Deferred revenue	209		115
Capital loss carryforward	—		3,993
Section 174 research expenditures	8,382		11,869
Other deferred tax assets	7,403		7,223
Total deferred tax assets	115,987		109,949
Valuation allowance	(114,479)		(108,162)
Total net deferred tax assets	1,508		1,787
Deferred tax liabilities:
Basis difference in intangibles	(654)		(1,233)
Other deferred tax liabilities	(854)		(554)
Total deferred tax liabilities	(1,508)		(1,787)
Net deferred tax liabilities	$	—	$	—

Summary of Operating Loss Carryforwards

	Tax Effected		Expiration
	($ in thousands)
Federal net operating loss ("NOL") carryforward	$	8,313	2033-2037
Federal NOL carryforward	65,092		Indefinite
State NOL carryforwards	10,852		2034-2043

Schedule of Unrecognized Tax Benefits Roll Forward

Below is a reconciliation of the total amounts of unrecognized tax benefits:

	2025		2024
	(in thousands)
Unrecognized tax benefits - January 1	$	9,006	$	9,006
Gross increase - tax positions in current period	—		—
Gross increase - tax positions in prior period	—		—
Unrecognized tax benefits - December 31	$	9,006	$	9,006