Quarterly report pursuant to Section 13 or 15(d)

Concentrations (Details)

v3.20.2
Concentrations (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2020
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Concentration Risk [Line Items]        
Cash and cash equivalents   $ 31,255   $ 23,964
Sales Revenue Segment | Customer Concentration Risk        
Concentration Risk [Line Items]        
Southwest Airlines, concentration risk, percent   25.00% 20.00%  
Sales Revenue Segment | Customer Concentration Risk | Connectivity        
Concentration Risk [Line Items]        
Southwest Airlines, concentration risk, percent   40.00% 38.00%  
Accounts Receivable | Customer Concentration Risk        
Concentration Risk [Line Items]        
Southwest Airlines, concentration risk, percent 17.00% 24.00%    
Foreign Subsidiaries        
Concentration Risk [Line Items]        
Cash and cash equivalents   $ 4,800