Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Balance sheet information related to leases (Details)

v3.19.3
Commitments and Contingencies - Balance sheet information related to leases (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Lessee, Lease, Description [Line Items]    
Operating lease right-of-use assets $ 5,552  
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] us-gaap:OperatingLeaseRightOfUseAsset  
Operating lease liabilities - Current $ 591  
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] us-gaap:OtherLiabilitiesCurrent  
Operating lease liabilities - Noncurrent $ 7,954  
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] us-gaap:OperatingLeaseLiabilityNoncurrent  
Lease Liability $ 8,545  
Operating Lease, Liability, Statement of Financial Position [Extensible List] us-gaap:OtherLiabilitiesCurrent us-gaap:OperatingLeaseLiabilityNoncurrent  
Property and equipment, net $ 2,848 $ 3,387
Finance lease liabilities - Current $ 9  
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] us-gaap:OtherLiabilitiesCurrent  
Finance lease liabilities - Noncurrent $ 14  
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] us-gaap:OtherLiabilitiesNoncurrent  
Lease Liability $ 23  
Finance Lease, Liability, Statement of Financial Position [Extensible List] us-gaap:OtherLiabilitiesCurrent us-gaap:OtherLiabilitiesNoncurrent  
Capital Lease Obligations, Total   30
Other current liabilities    
Lessee, Lease, Description [Line Items]    
Capital lease obligation - Current   10
Other long-term liabilities    
Lessee, Lease, Description [Line Items]    
Capital lease obligation - Noncurrent   20
Finance leased assets    
Lessee, Lease, Description [Line Items]    
Property and equipment, at cost $ 45  
Accumulated depreciation (23)  
Property and equipment, net $ 22  
Capital leased assets    
Lessee, Lease, Description [Line Items]    
Property and equipment, at cost   59
Accumulated depreciation   (29)
Property and equipment, net   $ 30