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Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Income Tax Disclosure [Abstract]    
Net operating loss carryforwards $ 6,492 $ 4,453
Tax credits carryforwards 1,297 887
Stock-based compensation 56 29
Fixed assets/intangible assets 111 99
Charitable contributions 2 1
Capitalized research 813
Accruals and other 133 6
Gross deferred tax assets 8,904 5,475
Valuation allowance (8,886) (5,475)
Deferred tax assets 18
Deferred tax liabilities:    
Unrealized gain 18
Deferred tax liabilities 18
Net deferred tax asset