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Equity - Consultant Stock Plan (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	$ 42	$ 410
Consultant Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reserved but unissued shares under the Consultant Plan at January 1	211
Stock grants	(4)
Reserved but unissued shares under the Consultant Plan at Period End	207
Compensation expense	$ 7	$ 9
Weighted Average Value Per Share	$ 1.93	$ 2.33
Maximum increase in available number of authorized shares as a percentage of new shares issued	1.00%

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- Definition

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Net number of non-option equity instruments granted to participants.

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