XML 70 R57.htm IDEA: XBRL DOCUMENT v3.21.2
Revenue Recognition (Schedule Of Contract Assets And Liabilities) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Opening [Member]        
Contract Receivables and Liabilities [Line Items]        
Receivables $ 739 $ 9 $ 1,103 $ 326
Contract Liabilities 2,769 2,193 2,200 663
Closing [Member]        
Contract Receivables and Liabilities [Line Items]        
Receivables 899 899
Contract Liabilities 3,038 2,014 3,038 2,014
Increase/(Decrease) [Member]        
Contract Receivables and Liabilities [Line Items]        
Receivables 160 (9) (204) (326)
Contract Liabilities $ 269 $ (179) $ 838 $ 1,351