Income Taxes (Tables)

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

Schedule of deferred tax assets (liabilities)

	December 31
	2023			2022
Net operating loss carryforwards	$	15,998		$	15,994
Net operating loss carryforwards of foreign subsidiaries		56			56
Depreciation expense		(182	)		(73	)
Stock-based compensation expense		528			349
Other		546			830
Net deferred tax assets		16,946			17,156
Valuation allowance for net deferred tax assets		(16,946	)		(17,156	)
Net deferred tax assets, net of valuation allowance	$	–		$	–

Schedule of effective income tax rate reconciliation

	2023			2022
Reconciliation of income tax benefit to statutory rate:
Income benefit at statutory rate	$	(2,917	)	$	(3,409	)
State income taxes (benefit), net of federal income tax benefit		(109	)		(107	)
Permanent differences		(427	)		89
Change in valuation allowance		(211	)		(5,899	)
Expiring federal net operating losses		3,341			9,745
Other		323			(419	)
Income tax provision	$	–		$	–