Organization and Principal Activities - Schedule of Subsidiaries Included in these Unaudited Consolidated Financial Statements (Details)	3 Months Ended
Mar. 31, 2026 USD ($)
Zhongchai Holding (Hong Kong) Limited [Member] \| Hong Kong [Member]
Schedule of Subsidiaries Included in these Unaudited Consolidated Financial Statements [Line Items]
Domicile and Date of Incorporation	Apr. 23, 2009
Paid-in Capital	$ 10,000
Ownership Percentage	100.00%
Principal Activities	Holding
Zhejiang Zhongchai Machinery Co., Ltd. [Member] \| PRC [Member]
Schedule of Subsidiaries Included in these Unaudited Consolidated Financial Statements [Line Items]
Domicile and Date of Incorporation	Nov. 21, 2005
Paid-in Capital	$ 20,000,000
Ownership Percentage	89.47%
Principal Activities	Manufacture, sale of various transmission boxes
Hangzhou Greenland Energy Technologies Co., Ltd. [Member] \| PRC [Member]
Schedule of Subsidiaries Included in these Unaudited Consolidated Financial Statements [Line Items]
Domicile and Date of Incorporation	Aug. 09, 2019
Paid-in Capital	$ 8,669,482
Ownership Percentage	100.00%
Principal Activities	Trading
HEVI Corp. [Member] \| Delaware [Member]
Schedule of Subsidiaries Included in these Unaudited Consolidated Financial Statements [Line Items]
Domicile and Date of Incorporation	Jan. 14, 2020
Paid-in Capital	$ 6,363,557
Ownership Percentage	100.00%
Principal Activities	U.S. operation and distribution of electric industrial vehicles for North American market
Hengyu Capital, Ltd [Member] \| Hong Kong [Member]
Schedule of Subsidiaries Included in these Unaudited Consolidated Financial Statements [Line Items]
Domicile and Date of Incorporation	Aug. 16, 2022
Paid-in Capital	$ 10,000
Ownership Percentage	62.50%
Principal Activities	Investment management and consulting services
Greenland Holding Enterprises Inc. [Member] \| Delaware [Member]
Schedule of Subsidiaries Included in these Unaudited Consolidated Financial Statements [Line Items]
Domicile and Date of Incorporation	Aug. 28, 2023
Paid-in Capital	$ 1
Ownership Percentage	100.00%
Principal Activities	Holding

Amount of excess of issue price over par or stated value of stock and from other transaction involving stock or stockholder. Includes, but is not limited to, additional paid-in capital (APIC) for common and preferred stock.

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