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Discontinued Operations - Summary of Operating Results Related to Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Discontinued Operations And Disposal Groups [Abstract]
Product revenue	$ 197	$ 901
Cost of revenue	199	857
Gross profit	(2)	44
Operating expenses:
Research and development	237	656
Sales and marketing	97	411
General and administrative	39	185
Total operating expenses	373	1,252
Operating loss	(375)	(1,208)
Other income (expense)	(5)	142
Loss from discontinued operations	$ (380)	$ (1,066)

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Disposal group including discontinued operation other income (expense).

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Disposal group including discontinued operation research and development expense.

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Disposal group including discontinued operation sales and marketing expense.

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Disposal group including discontinued operations operating expenses.

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Income (loss) from discontinued operations before gain (loss) from sale of business, net of tax

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Amount of costs of goods sold attributable to disposal group, including, but not limited to, discontinued operation.

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-Publisher FASB
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