Significant Accounting Policies, Inventory Valuation (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Inventory Valuation [Abstract]
Raw materials	$ 18,197	$ 16,708
Work in process	2,096	2,252
Finished goods	1,906	3,005
Total inventory	22,199	21,965
Clinical [Member]
Inventory Valuation [Abstract]
Raw materials	10,695	9,206
Commercial [Member]
Inventory Valuation [Abstract]
Raw materials	$ 7,502	$ 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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Paragraph 1
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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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-Publisher FASB
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-Section S99
-Paragraph 1
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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.

+ References

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-SubTopic 10
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