Discontinued Operations (Activity of Discontinued Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net loss	$ (604)	$ (3,775)	$ (1,017)	$ (4,303)
Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenues	0	0	0	0
Cost of services	597	3,758	1,006	4,278
Interest expense, net	7	17	11	25
Net loss	$ (604)	$ (3,775)	$ (1,017)	$ (4,303)