Information Regarding Net Revenue and Gross Profit by Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Net revenue	$ 18,120	$ 19,522
Gross profit	$ 7,500	$ 8,704
Gross profit margin	41.00%	45.00%
Operating expenses:
Research and development	$ 2,596	$ 2,026
Selling and marketing	4,497	4,498
General and administrative	2,191	2,622
Restructuring and severance	65	(12)
Total operating expenses	9,349	9,134
Loss from operations	(1,849)	(430)
Non-operating income (expense):
Interest expense, net	(252)	(279)
Foreign currency gains (losses), net	86	(2)
Loss before income taxes	(2,015)	(711)
Premises
Segment Reporting Information [Line Items]
Net revenue	8,234	9,330
Gross profit	$ 4,526	$ 4,379
Gross profit margin	55.00%	47.00%
Identity
Segment Reporting Information [Line Items]
Net revenue	$ 9,886	$ 10,192
Gross profit	$ 2,974	$ 4,325
Gross profit margin	30.00%	42.00%

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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