Income Taxes (Tables)

12 Months Ended

Dec. 31, 2024

Schedule of deferred tax assets
	As of December 31,
(in thousands of U.S. dollars)	2024			2023
Deferred tax assets:
Net operating loss carryforwards	$	49,611		$	53,225
Research credit carryforwards		9,214			9,841
Other, net		1,655			1,980
Total deferred tax assets		60,480			65,046
Deferred tax liabilities:
Other, net		-			(19	)
Total deferred tax liabilities		-			(19	)
Valuation allowance		(60,480	)		(65,027	)
Net deferred tax assets	$	-		$	-

Schedule of effective tax rate
	For the Years Ended December 31,
(in thousands of U.S. dollars)	2024			2023
Computed at 21%	$	(980	)	$	(1,084	)
State taxes		(436	)		11
Change in valuation allowance		(4,547	)		(5,310	)
Other		1			2
Stock based compensation		74			218
Research and development credits		(185	)		(233	)
Tax attributes expirations		6,082			6,314
Impact of IRC 162m		(8	)		83
Total	$	1		$	1