Property and Equiprmnet, Net (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Property and Equiprmnet, Net (Textual)
Depreciation expenses	$ 1	$ 2

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

No definition available.

Name:	cuen_DepreciationExpenses
Namespace Prefix:	cuen_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration