Annual report pursuant to Section 13 and 15(d)

Contingencies and Commitments - Narrative (Details)

v3.10.0.1
Contingencies and Commitments - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
license_agreement
Research and Development Arrangement, Contract to Perform for Others [Line Items]  
Number of license agreements | license_agreement 2
Obligation due in less than one year $ 3,210
Purchase obligation 1,459
Royalty Agreement Terms  
Research and Development Arrangement, Contract to Perform for Others [Line Items]  
Obligation due in less than one year $ 50
Royalty Agreement Terms | Net sales  
Research and Development Arrangement, Contract to Perform for Others [Line Items]  
Royalty percentage 1.00%
Royalty Agreement Terms | License fees  
Research and Development Arrangement, Contract to Perform for Others [Line Items]  
Royalty percentage 21.00%