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Schedule of Reconciliation of Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Jun. 30, 2019
Dec. 31, 2018
Accounting Policies [Abstract]        
Cash and cash equivalents $ 12,676 $ 9,497    
Restricted cash included in deposits and other long-term assets (see Note 15) 568 599    
Total cash, cash equivalents, and restricted cash as shown in the condensed consolidated statements of cash flows $ 13,244 $ 10,096 $ 8,796 $ 24,399