XML 68 R57.htm IDEA: XBRL DOCUMENT v3.20.2
Fair Value Measurements (Details 1) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impairment of property and equipment $ 993  
Impairment of goodwill   $ 400
Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impairment of property and equipment  
Impairment of goodwill  
Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impairment of property and equipment  
Impairment of goodwill  
Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impairment of property and equipment $ 993  
Impairment of goodwill   $ 400