Revenue Recognition - Disaggregation of revenue (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Revenue	$ 54,588	$ 22,214
Revenue from related party	75	562
Charging Revenue Retail [Member]
Revenue	18,895	11,041
Charging Revenue OEM [Member]
Revenue	941	812
Charging Revenue Commercial [Member]
Revenue	3,363	2,420
Network Revenue, OEM [Member]
Revenue	2,451	1,510
Ancillary Revenue [Member]
Revenue	4,843	2,619
Revenue from related party	100	0
Regulatory Credit Sales [Member]
Revenue	5,652	3,023
Revenue from related party	0	600
eXtend [Member]
Revenue	$ 18,443	$ 789

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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+ Details

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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