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Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Provision for income taxes [Abstract]
Income taxes using U.S federal statutory rate	$ (7,666)	$ (5,386)
Nondeductible interest	139	39
Loss of tax benefit of state net operating loss carryforwards	0	2,799
Branch income	(385)	229
State income taxes, net of federal benefit	(531)	311
Foreign rate differential	165	27
Valuation allowance	9,221	2,114
Stock option expense, exercises and cancellations	752	446
Research and development costs	(708)	(375)
Other	(987)	(204)
Total	$ 0	$ 0

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