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Taxes (Reconciliation of (Benefit) Provision for Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of the (benefit) provision for income taxes
Loss from continuing operations before taxes	$ (25,915)	$ (22,734)
Income tax expense computed at statutory federal tax rate	(5,442)	(4,774)
Disallowed expenses and non-taxable income	369	328
Loss surrendered to generate R&D credit	6,169	4,967
Additional research and development tax relief	(4,719)	(3,849)
Stock Compensation	105
Change in valuation allowance	2,310	15,296
Foreign items, including change in tax rates, and other	(20)	(177)
Change in UK Tax Rate	(2)	(12,831)
Other foreign items	(3,487)	(2,807)
Current - total	$ (4,717)	$ (3,847)

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense and repatriation of foreign earnings.

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