Sale of the Services Business, Discontinued Operations - Revenue, Expense, Gain, and Losses Attributable to Discontinued Operations (Details) - Services Business [Member] - Discontinued Operations, Disposed of by Sale [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	$ 3,617	$ 6,849
Cost of revenue	(3,599)	(6,830)
Research and development	(422)	(853)
Selling, general, and administrative	(198)	(221)
Severance and exit costs	(1,053)	(1,053)
Impairment charge from classification of assets held for sale	(1,350)	(1,350)
Loss from discontinued operations	$ (3,005)	$ (3,458)