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Original equipment manufacturers distribution agreement windows mobile operating systems expiration date.

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Percentage of allocated rebate values.

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Significant Risk Concentrations - Additional Information (Detail) - USD ($)		3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 01, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Concentration Risk [Line Items]
Total revenue		$ 14,180,000	$ 19,203,000	$ 29,276,000	$ 39,881,000
Accounts receivable		8,957,000		$ 8,957,000		$ 11,581,000
Distribution partners in Europe, Turkey and Africa existing distribution agreements expiration date				Jun. 30, 2019
ODAs windows mobile operating system expiration date	Apr. 30, 2022
Rebate credits outstanding		$ 341,000		$ 341,000
Cost of revenue [Member]
Concentration Risk [Line Items]
Allocation of rebate values, percentage		20.00%	30.00%	20.00%	30.00%
Reduction to marketing expense [Member]
Concentration Risk [Line Items]
Allocation of rebate values, percentage		80.00%	70.00%	80.00%	70.00%
Third Party Software [Member]
Concentration Risk [Line Items]
Total revenue		$ 11,684,000	$ 16,992,000	$ 24,785,000	$ 33,056,000
Percentage of sales from existing distribution agreements on total revenues				3.70%
Honeywell International Inc and affiliated entities [Member] \| Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Total revenue					$ 4,100,000
Honeywell International Inc and affiliated entities [Member] \| Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Accounts receivable		$ 2,000,000		$ 2,000,000		$ 7,600,000
Revenue [Member] \| Honeywell International Inc and affiliated entities [Member] \| Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk, percentage					10.00%
Accounts receivable [Member] \| Honeywell International Inc and affiliated entities [Member] \| Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk, percentage				23.00%		47.00%