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Discontinued Operations (Tables)
 12 Months Ended
Dec. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]  
Disposal Groups, Including Discontinued Operations [Table Text Block]


Revenues
 
$
12,068

Costs of services
 
8,653

Gross profit
 
3,415

Selling, general and administrative expenses
 
2,385

Amortization of intangible assets
 
155

Income before income taxes
 
875

Provision for income taxes
 
350

Income from discontinued operations, net of income taxes
 
$
525