Sale of the Services Business, Discontinued Operations - Revenue, Expense, Gain, and Losses Attributable to Discontinued Operations (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jul. 16, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment charge from classification of assets as held for sale				$ (586)	$ 0
Gain (loss) on disposal, net of associated transaction costs of $764 for the three and nine month periods ended September 30, 2015		$ (73)		(73)	0
Services Business [Member] | Discontinued Operations, Disposed of by Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue		560	$ 4,319	7,408	13,535
Cost of revenue		(466)	(3,660)	(7,296)	(11,800)
Research and development		(7)	0	(860)	0
Selling, general, and administrative		0	75	0	75
Gain on insurance recovery		0	0	0	165
Severance and exit costs		(1,061)	0	(2,114)	0
Impairment charge from classification of assets as held for sale		0	0	(1,350)	0
Gain (loss) on disposal, net of associated transaction costs of $764 for the three and nine month periods ended September 30, 2015	$ (73)	148	0	(73)	0
Selling costs	$ 764	764		764
Income tax expense		0	(338)	0	(909)
Income (loss) from discontinued operations, net of income tax expense		$ (826)	$ 396	$ (4,285)	$ 1,066