Annual report pursuant to Section 13 and 15(d)

Intangibles (Schedule of Intangible Assets) (Details)

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Intangibles (Schedule of Intangible Assets) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Total Intangible assets - asset purchases $ 18,606 $ 9,934  
Accumulated amortization (3,977) (2,557)  
Net intangible assets $ 14,629 $ 7,377 $ 1,417
Minimum [Member]      
Intangible assets, estimated useful lives 3 years    
Maximum [Member]      
Intangible assets, estimated useful lives 7 years