Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments And Contingencies Disclosure [Abstract]

Annual Purchase Requirements under Contract

The annual purchase requirements under the contract are as follows:

2019	€	5.8 million
2020	€	15.9 million
2021	€	15.9 million
2022	€	19.8 million
2023	€	19.8 million
2024	€	8.6 million

Schedule of Future Minimum Lease Payments

Future minimum lease payments are as follows:

2019	$	947,162
2020		975,577
2021		1,004,844
2022		1,034,989
2023		87,957
	$	4,050,529