Revenue - Disaggregated Revenue by Geography (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Total Revenues	$ 12,791	$ 8,491
United States
Disaggregation of Revenue [Line Items]
Total Revenues	10,242	6,734
South America
Disaggregation of Revenue [Line Items]
Total Revenues	335	155
Europe
Disaggregation of Revenue [Line Items]
Total Revenues	1,454	838
Asia
Disaggregation of Revenue [Line Items]
Total Revenues	760	764
Total Foreign Revenues
Disaggregation of Revenue [Line Items]
Total Revenues	$ 2,549	$ 1,757