Annual report pursuant to Section 13 and 15(d)

Discontinued Operations (Details)

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Discontinued Operations (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Revenue, net of returns, allowances and discounts $ 1,242 $ 3,655
Cost of revenues 396 1,140
Gross profit 846 2,515
Selling, general and administrative 392 1,030
Income from discontinued operations, net of tax $ 454 $ 1,485