Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2019

Commitments And Contingencies Disclosure [Abstract]

Annual Purchase Requirements under Contract

2019	€	2.3 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 Office And Vehicle Lease Payments

Future minimum office and vehicle lease payments as of June 30, 2019 and December 31, 2018, are as follows:

	June 30, 2019		December 31, 2018
2019 (Remainder)	$	742,078	$	1,595,421
2020		1,503,192		1,623,835
2021		1,532,458		1,653,101
2022		1,254,828		1,305,096
2023		87,957		87,957
	$	5,120,513	$	6,265,410

The 2018 amounts above are inclusive of office and vehicle lease payments in order to conform to the current year presentation.