Related Party Transactions (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Related Party Transactions
Accounts payable due related party	$ 751	$ 1,509
Investor \| Allergan
Related Party Transactions
Accounts receivable		106,000
Board of Directors member \| Cyclerion Therapeutics, Inc.
Related Party Transactions
Accounts payable due related party	$ 800	$ 1,500

Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant