Significant Accounting Policies, Inventory Valuation (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Inventory Valuation [Abstract]
Raw materials	$ 21,586	$ 16,708
Work in process	954	2,252
Finished goods	1,559	3,005
Total inventory	24,099	21,965
Clinical [Member]
Inventory Valuation [Abstract]
Raw materials	11,987	9,206
Commercial [Member]
Inventory Valuation [Abstract]
Raw materials	$ 9,599	$ 7,502

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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