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Taxes (Reconciliation of (Benefit) Provision for Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of the (benefit) provision for income taxes
Loss from continuing operations before taxes	$ (9,126)	$ (8,625)
Income tax expense computed at statutory federal tax rate	(1,916)	(1,811)
Disallowed expenses and non-taxable income	345	310
Loss surrendered to generate R&D credit	1,686	1,519
Additional research and development tax relief	(1,299)	(1,342)
Change in valuation allowance	665	(7,440)
Foreign items, including change in tax rates, and other	176	(1,700)
Section 382 Limitation		9,985
Other foreign items	(953)	(858)
Current - total	$ (1,296)	$ (1,337)

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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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The sum of the differences between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to nondeductible expenses under enacted tax laws, differences in the methodologies used to determine expense amounts for financial statements prepared in accordance with generally accepted accounting principles and income that is exempt from income taxes under enacted tax laws.

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Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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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 increase (decrease) in the valuation allowance for deferred tax assets.

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