Revenue Recognition - Narrative (Details) - USD ($)	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Revenue Recognition [Line Items]
Impairment losses	$ 0	$ 0
Bad-debt expense	0	$ 0
Contract assets	0		$ 0
Revenue performance obligation	$ 13,800,000
Remaining performance obligation practical expedient	true
Concentrate Products [Member]
Revenue Recognition [Line Items]
Reserve for returns	$ 0		$ 0
Baxter Healthcare Organization
Revenue Recognition [Line Items]
Revenue performance obligation	$ 10,600,000

Contract With Customer Asset Credit Loss Expense Recognized

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- Definition

Revenue Recognition [Line Items]

+ References

No definition available.

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- Definition

Amount of credit loss recognized for write-down of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (c)
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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130533-203044

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- Definition

Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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- Definition

Indicates (true/false) whether practical expedient is elected not to disclose amount of transaction price allocated to remaining performance obligation and explanation of expected timing of revenue recognition for reporting period presented prior to date of initial application under retrospective method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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