Discontinued Operations - Summary Results of Operations for Discontinued Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Discontinued Operations And Disposal Groups [Abstract]
Revenue		$ (29)		$ 3
Total operating expenses	$ 1,255	698	$ 1,381	1,089
Loss before income tax	(1,255)	(720)	(1,381)	(1,072)
Benefit from income tax	(470)		(517)
Loss from discontinued operations, net of tax	$ (785)	$ (720)	$ (864)	$ (1,072)
Net loss per share - Basic and Diluted	$ (0.01)	$ (0.02)	$ (0.01)	$ (0.01)

Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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- Definition

Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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