Annual report pursuant to Section 13 and 15(d)

Discontinued Operations (Narrative) (Details)

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Discontinued Operations (Narrative) (Details) - USD ($)
$ in Thousands, shares in Millions
12 Months Ended
Feb. 11, 2019
Nov. 14, 2018
Dec. 31, 2019
Proceeds from sale of National     $ 13,089
Discontinued Operations [Member] | National Holdings Corporation "NHC" [Member]      
Sale of National, total consideration   $ 22,900  
Sale of National, number of shares sold 4 3  
Proceeds from sale of National $ 13,100 $ 9,800  
Ownership percentage     0.00%