Note 2 - Summary of Significant Accounting Policies (Details Textual)			3 Months Ended			6 Months Ended	9 Months Ended			12 Months Ended
	Jan. 31, 2022 shares	Jan. 07, 2022 shares	Sep. 30, 2022 USD ($) shares		Sep. 30, 2021 USD ($)	Jun. 30, 2022	Sep. 30, 2022 USD ($) shares		Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Mar. 15, 2021 shares
Restricted Cash and Cash Equivalents			$ 60,131				$ 60,131			$ 60,035
Marketable Securities			1,976,308				1,976,308			8,002,700
Accounts Receivable, before Allowance for Credit Loss, Current			3,384,936				3,384,936			1,428,030
Accounts Receivable, Allowance for Credit Loss, Current			0				0			0
Inventory, Finished Goods, Gross			5,966,804				5,966,804			3,862,970
Inventory Valuation Reserves										12,429
Inventory, Net			5,954,375	[1]			5,954,375	[1]		3,850,541
Inventory Deposits			4,855,049	[1]			4,855,049	[1]		4,503,079
Unrecognized Tax Benefits			$ 0				$ 0			0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number (in shares) | shares			604,906				604,906				649,643
Class of Warrant or Right, Outstanding (in shares) | shares			1,402,417				1,402,417				534,067
Maximum Insured Funds, FDIC and SPIC			$ 750,000				$ 750,000
Maximum Cash Insured			500,000				500,000
Extra Insurance by SPIC, Cap, Unlimited Per Customer Securities			1,000,000,000				1,000,000,000
Restricted Cash, Current			60,131	[1]			60,131	[1]		60,035
Impairment, Long-Lived Asset, Held-for-Use							$ 0			0
Number of Reporting Units							1
Goodwill			51,775,667	[1]			$ 51,775,667	[1]		51,775,667
Research and Development Expense			25,000		$ 0		$ 112,412		$ 0	58,139
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares) | shares	3,874	340,893					50,000
Share-Based Payment Arrangement, Expense							$ 1,614,845
Adomani Inc [Member]
Goodwill			51,775,667				51,775,667			$ 51,775,667
Approximation [Member]
Inventory, Net			5,594,375				5,594,375
Three Vehicles [Member]
Inventory Valuation Reserves			$ 12,429				$ 12,429
Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)			3 years				3 years
Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)			5 years				5 years
Held-to-maturity Marketable Securities [Member] | Minimum [Member]
Investment, Maturity Period (Day)							154 days
Investment, Remaining Maturity Period (Day)							92 days
Held-to-maturity Marketable Securities [Member] | Maximum [Member]
Investment, Maturity Period (Day)							199 days
Investment, Remaining Maturity Period (Day)							182 days
Customer Concentration Risk [Member] | Accounts Receivable [Member]
Number of Major Customers							5
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Five Customers [Member]
Concentration Risk, Percentage							64.00%
Customer Concentration Risk [Member] | Revenue Benchmark [Member]
Number of Major Customers							5
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Five Customers [Member]
Concentration Risk, Percentage							67.00%
Credit Concentration Risk [Member] | Accounts Receivable [Member] | Loans Insured or Guaranteed by US Government Authorities [Member]
Concentration Risk, Percentage						70.00%	82.00%
Supplier Concentration Risk [Member] | Deposits Outstanding [Member]
Number of Vendors							3
Supplier Concentration Risk [Member] | Deposits Outstanding [Member] | Three Suppliers [Member]
Concentration Risk, Percentage							89.00%
Fair Value, Recurring [Member]
Assets, Fair Value Disclosure			$ 0				$ 0
Liabilities, Fair Value Disclosure			$ 0				$ 0

[1] The Consolidated Balance Sheet as of September 30, 2022 has been restated. See Note 12.