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Ownership, Nature of Business - Goodwill and other intangibles (Details) - USD ($)
$ in Thousands
1 Months Ended 11 Months Ended 12 Months Ended
Dec. 31, 2018
Dec. 12, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Goodwill and other intangibles          
Segment impairment     $ 0 $ 0 $ 113,753
Other intangible assets $ 3,136   2,650 3,136  
Amortization of intangibles 23 $ 630 438   496
Intangible amortization expense $ 23 630 438   496
Internet segment impairment          
Goodwill and other intangibles          
Other intangible assets   403      
Retail segment impairment          
Goodwill and other intangibles          
Segment impairment     $ 0 $ 0 $ 113,753
Goodwill and other intangible assets   14,048      
Other intangible assets   $ 2,760      
Customer list for the internet business and Florida acquisition          
Goodwill and other intangibles          
Amortization period     3 years 5 years 7 years