Basis of Presentation (Details 2) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Total Revenue	$ 2,752	$ 2,979
Product sales [Member]
Total Revenue	934	1,163
Royalties [Member]
Total Revenue	$ 1,818	$ 1,816

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details