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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

Loss from Continuing Operations Before Provision for Income Taxes

The components of loss before provision for income taxes consist of the following (in thousands):

		Years Ended December 31,
(In Thousands)		2022				2023
United States		$	(7,525	)		$	(9,829	)
Foreign			(536	)			13
Loss before provision for income taxes		$	(8,061	)		$	(9,816	)

Provision for Income Taxes

The provision for income taxes consists of the following (in thousands):

		Years Ended December 31,
(In Thousands)		2022				2023
Current federal provision
State		$	58			$	78
Foreign			39				—
Deferred provision (benefit)
Federal			67				25
State			20				(9	)
Total income tax expense		$	184			$	94

Computation of Income Tax Expense (Benefit) from Continuing Operations Using Federal Statutory Rate

The Company’s income tax expense differed from the amounts computed by applying the U.S. federal statutory rate to loss before provision for income taxes as a result of the following:

		Years Ended December 31,
(In Thousands)		2022				2023
.
Income tax benefit at U.S. statutory rate		$	(1,693	)		$	(2,061	)
State taxes, net of valuation allowance			79				(339	)
Foreign tax differential			(150	)			3
Non-deductible transaction costs			16				(29	)
Stock-based compensation (1)			190				101
Gain on CARES Act loan			32				—
Valuation allowance			1,815				2,307
Tax credits			(237	)			(282	)
Other expenses			132				394
Total income tax expense		$	184			$	94

(1) Includes non-deductible stock-based compensation and excess tax benefits and shortfalls from stock-based compensation.

Schedule of Deferred Tax Assets and Liabilities

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities are presented below and reflects the 21% U.S. federal statutory rate for 2022 and 2023 (in thousands):

		Years Ended December 31,
(In Thousands)		2022				2023
Deferred tax assets:
Accrued liabilities not currently deductible		$	434			$	559
Intangible assets- excess of financial statement    over tax amortization			3,341				2,096
Stock-based compensation			675				741
Federal net operating and capital losses			35,724				42,774
State, local and foreign net operating and capital loss carryforwards			5,326				—
Research & experimental tax and other credit carryforwards			5,421				5,612
Lease liability			426				416
Capitalized research and development			1,054				1,764
Other			460				337
Gross deferred tax assets			52,861				54,299
Valuation allowance			(51,795	)			(54,105	)
Net deferred tax assets		$	1,066			$	194
Deferred tax liabilities:
Intangible assets-excess of tax over financial statement amortization			(1,107	)			—
Right-of-use lease asset			(192	)			(404	)
Other			—				(39	)
Net deferred tax liabilities		$	(233	)		$	(249	)

Summary of Activity Related to Tax Contingencies Recorded As an Offset to Deferred Tax Assets

The following table summarizes activity related to tax contingencies from January 1, 2022 to December 31, 2023 which are recorded as an offset to deferred tax assets (in thousands):

(In Thousands)
Gross tax contingencies—January 1, 2022		$	1,382
Gross increases to current period tax positions			2
Gross decreases to tax positions associated with prior periods			—
Gross tax contingencies—December 31, 2022			1,384
Gross increases to current period tax positions			25
Gross tax contingencies—December 31, 2023		$	1,409

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