Costs of sales and operating expenses for the period incurred from transactions with related parties.

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Related Party Transactions (Details) - USD ($)	3 Months Ended
Related Party Transactions (Details) - USD ($)	Mar. 31, 2019	Mar. 31, 2018	Nov. 29, 2016
Dow
Related party transactions
Outstanding payable to related party	$ 0	$ 0
Director \| Mutal services agreement
Related party transactions
Outstanding payable to related party	0
Consulting fee, daily			$ 5,000
Expenses paid per service agreement	0
Dow \| Seperate IT Services
Related party transactions
Payment amount for services	5,000,000.0
Dow \| Dow
Related party transactions
Payment amount for services	30,000	379,000
Dow \| Dow \| Ongoing costs of transition services agreement
Related party transactions
Payment amount for services	30,000	84,000
Dow \| Dow \| Other expenses
Related party transactions
Payment amount for services	$ 0	$ 295,000