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Discontinued Operation (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Loss from discontinued operations before income taxes                 $ (206) $ (1,713) [1] $ (1,077) [1]
Income tax expense (benefit) [1]                   355 154
Loss from discontinued operations $ (98) $ (194) $ (79) $ (81) $ (88) $ (101) $ (77) $ (1,092) (452) (1,358) [1],[2] (923) [1],[2]
Payments for legal settlements               $ 1,200 1,200    
Commercial [Member]                      
Loss from discontinued operations before income taxes                 (206) (1,713) (1,077)
Income tax expense (benefit)                 (246) 355 154
Loss from discontinued operations                 $ (452) $ (1,358) $ (923)
[1] See Note 4.
[2] See Note 4.