Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Schedule of deferred tax assets and liabilities

	December 31
	2022			2021
Net operating loss carryforwards	$	15,994		$	22,497
Net operating loss carryforwards of foreign subsidiaries		56			56
Depreciation expense		(73	)		(94	)
Stock-based compensation expense		349			52
Other		830			544
Net deferred tax assets		17,156			23,055
Valuation allowance for net deferred tax assets		(17,156	)		(23,055	)
Net deferred tax assets, net of allowance	$	–		$	–

Schedule of effective income tax rate reconciliation

	2022			2021
Reconciliation of income tax benefit to statutory rate:
Income benefit at statutory rate	$	(3,409	)	$	(3,948	)
State income taxes (benefit), net of federal income tax benefit		(107	)		(331	)
Permanent differences		89			(206	)
Change in valuation allowance		(5,899	)		2,458
Expiring federal net operating losses		9,745			–
Other		(419	)		2,027
Income tax provision	$	–		$	–