Organization and Description of Business (Details) - USD ($)					1 Months Ended			12 Months Ended
	Aug. 04, 2021	Jul. 02, 2021	Feb. 02, 2021	Jul. 03, 2020	Jun. 30, 2021	Aug. 24, 2020	Sep. 21, 2005	Dec. 31, 2021	Dec. 31, 2019	Feb. 04, 2020
Organization and Description of Business (Details) [Line Items]
Reverse stock split, description			(i) every two and a half shares of common stock have been combined into one share of common stock; (ii) the number of shares of common stock underlying each common stock option or common stock warrant have been proportionately decreased on a 2.5-for-1 basis, and the exercise price of each such outstanding stock option and common warrant has been proportionately increased on a 2.5-for-1 basis. Accordingly, all option numbers, share numbers, warrant numbers, share prices, warrant prices, exercise prices and losses per share have been adjusted within these consolidated financial statements, on a retroactive basis, to reflect this 2.5-for-1 reverse stock split.
License agreement, description									Pursuant to the Underwriting Agreement, the Company also agreed to issue to Maxim warrants (the “Underwriter’s Warrants”) to purchase up to a total of 223,256 shares of Common Stock (8% of the shares of Common Stock sold in the Offering).
Reverse stock split shares (in Shares)								223,256
Percentage of common stock sold								8.00%
Exercisable price (in Dollars per share)										$ 4.3
Offering cost (in Dollars)								$ 1,400,000
Common stock in consideration (in Dollars)					$ 1,204
Meimoun and Mammon [Member]
Organization and Description of Business (Details) [Line Items]
Ownership percentage in subsidiaries							100.00%
Nxtgn [Member]
Organization and Description of Business (Details) [Line Items]
Ownership percentage in subsidiaries						65.00%
Next Mobile 360, LLC. [Member]
Organization and Description of Business (Details) [Line Items]
Ownership percentage in subsidiaries							100.00%
Next Cala, Inc. [Member]
Organization and Description of Business (Details) [Line Items]
Ownership percentage in subsidiaries				94.00%
Benelisha [Member]
Organization and Description of Business (Details) [Line Items]
Joint venture arrangement, description	the Company and Benelisha entered into a Definitive Marketing and Promotion Agreement (the “Belisha Agreement”). Pursuant to the Belisha Agreement, the Company and Benelisha will market and promote Cuentas GPR cards and the mobile phone application (“DC/MA”) products to Benelisha customers. During the Term, Benelisha’s goal is to register Benelisha customers to become activated users of Cuentas DC/MA products by the following milestone goals.
Warrant [Member]
Organization and Description of Business (Details) [Line Items]
Reverse stock split, description			the Company’s common stock and warrants began trading on The Nasdaq Capital Market under the symbols “CUEN” and “CUENW,” respectively. On February 4, 2021 the Company sold an aggregate of 2,790,697 units at a price to the public of $4.30 per unit (the “Offering”), each unit consisting of one share of the Company’s common stock, par value $0.001 per share (the “Common Stock”), and a warrant exercisable for five years to purchase one share of Common Stock at an exercise price of $4.30 per share (the “Warrants”), pursuant to that certain Underwriting Agreement, dated as of February 1, 2021 (the “Underwriting Agreement”), between the Company and Maxim Group LLC (the “Representative” or “Maxim”), as representative of the sole underwriter. In addition, pursuant to the Underwriting Agreement, the Company granted Maxim a 45-day option to purchase up to 418,604 additional shares of Common Stock, and/or 418,604 additional Warrants, to cover over-allotments in connection with the Offering. The Common Stock and the Warrants were offered and sold to the public pursuant to the Company’s registration statements on Form S-1 (File Nos. 333-249690 and 333-252642), filed by the Company with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the “Securities Act”), on October 28, 2020, as amended, and which became effective on February 1, 2021. The Company received gross proceeds of approximately $12.0 million, before deducting underwriting discounts and commissions of 8% of the gross proceeds and estimated Offering expenses, and intend to use the net proceeds from the Offering for sales and marketing; purchase of chip-based debit card stock for GPR and Starter cards; repayment of outstanding loans; research and development; and working capital and operating expenses purposes. The Underwriting Agreement contains customary representations, warranties, and covenants by the Company. It also provides for customary indemnification by each of the Company and the Underwriter for losses or damages arising out of or in connection with the offering, including for liabilities under the Securities Act, other obligations of the parties and termination provisions.
Warrant term								5 years
Exercised offering shares (in Shares)		57,500			298,500
Common stock in consideration (in Dollars)		$ 247
Underwriters [Member]
Organization and Description of Business (Details) [Line Items]
Exercisable price (in Dollars per share)								$ 5.375