v3.22.2.2

Segment and Geographic Information - Additional Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) segment	Jun. 30, 2021 USD ($)
Segment Reporting [Abstract]
Number of reportable segments \| segment			1
Recognized from deferred revenue	$ 3.4	$ 3.0	$ 5.1	$ 6.8
Revenue remaining performance obligations	$ 8.7		$ 8.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Concentration Risk [Line Items]
Revenue remaining performance obligation	43.00%		43.00%
Revenue remaining performance obligation, term	6 months		6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Concentration Risk [Line Items]
Revenue remaining performance obligation	39.00%		39.00%
Revenue remaining performance obligation, term	1 year		1 year
Revenue Benchmark \| Customer Concentration Risk \| Largest Customer
Concentration Risk [Line Items]
Concentration risk	22.00%	22.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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CYREN Ltd. 10-Q