Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Service Agreements (Details)

v3.19.1
Commitments and Contingencies - Service Agreements (Details) - USD ($)
$ in Thousands
 3 Months Ended
Aug. 06, 2015
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2011
Service Agreements        
Term of agreement 5 years      
Amount required to pay for execution of the agreement       $ 151
Cost of goods sold        
Service Agreements        
Service agreement license fees   $ 488 $ 419