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Related Party Transactions (Details) - Dong-A ST - Manufacturing Agreement - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 28, 2018	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Related Party Transactions
Term of agreement	5 years
Related Party Costs		$ 0	$ 0	$ 0	$ 314	$ 0
Period for dismission of allegations.				30 days

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- Definition

The notice period for dismission of bankruptcy and other disputes other wise the agreement gets terminated.

+ References

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- Definition

The period for which the entity entered in to the contract.

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- Definition

Direct costs arising from transactions with related parties who are not affiliates or joint Ventures. These costs are categorized as cost of goods sold.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k)(1))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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