v3.22.1

Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Taxes.
Income tax expense	$ 56	$ 7
Operating loss carryforwards	$ 150,926
Expiring period	20 years
Operating loss carry forwards without limitation	$ 56,336

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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 operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Period of time between net operating loss expiration, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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