Related Party Transactions (Details) - USD ($)	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Total revenues	$ 60,594,000	$ 50,024,000	$ 48,837,000
Exela
Related Party Transaction [Line Items]
Accounts receivable, related parties	0	1,600,000
Exela \| Revenue sharing arrangement
Related Party Transaction [Line Items]
Total revenues	0	2,600,000	2,200,000
Alfa Aesar
Related Party Transaction [Line Items]
Accounts receivable, related parties	0	0	400,000
AstraZeneca
Related Party Transaction [Line Items]
Accounts receivable, related parties	200,000	100,000
Revenue from related parties	600,000	100,000	0
Asymchem
Related Party Transaction [Line Items]
Accounts receivable, related parties	0	100,000
Revenue from related parties	$ 0	$ 75,000	$ 0
Exela \| Presidio Partners 2007, L.P.
Related Party Transaction [Line Items]
Investment, ownership percentage	10.00%

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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