Note 2 - Summary of Significant Accounting Policies (Details Textual)				3 Months Ended	12 Months Ended
	Jan. 31, 2022 shares	Jan. 07, 2022 shares	Aug. 04, 2021 shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares	Mar. 15, 2021 shares	Dec. 31, 2020 USD ($) shares
Revenue from Contract with Customer, Including Assessed Tax					$ 4,504,621	$ 2,042,844
Restricted Cash, Current				$ 60,399	60,399	60,035
Marketable Securities				8,002,700	8,002,700
Accounts Receivable, before Allowance for Credit Loss, Current				2,344,909	2,344,909	1,428,030
Accounts Receivable, Allowance for Credit Loss, Current				271,218	271,218	0
Inventory, Finished Goods, Gross				5,683,755	5,683,755	3,862,970
Inventory Valuation Reserves						12,429
Inventory, Net				5,671,326	5,671,326	3,850,541
Inventory Deposit, Outstanding From Operating Made in Previous Year				2,731,294	2,731,294
Inventory Deposits				4,829,933	4,829,933	4,503,079
Deferred Tax Assets, Valuation Allowance				$ 8,110,618	$ 8,110,618	6,857,926
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount						$ 218,300
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares) | shares				608,266	608,266	338,500		0
Class of Warrant or Right, Outstanding (in shares) | shares				1,402,417	1,402,417	1,429,900	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 and Cash Equivalents				60,399	60,399	$ 60,000
Impairment, Long-Lived Asset, Held-for-Use					$ 0	0
Number of Reporting Units					1
Goodwill, Impairment Loss				37,093,047	$ 37,093,047	0
Research and Development Expense					$ 149,912	$ 58,139
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares) | shares	3,874	340,893	22,000		50,000	287,536
Share-Based Payment Arrangement, Expense					$ 1,614,845	$ 3,414,440
Adomani Inc [Member]
Share-Based Payment Arrangement, Expense						3,293,308
Share-Based Payment Arrangement, Option [Member]
Share-Based Payment Arrangement, Expense						$ 121,132
EVTDS [Member]
Deferred Tax Assets, Valuation Allowance								$ 0
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)					158 days	143 days
Investment, Remaining Maturity Period (Day)					1 day	13 days
Held-to-maturity Marketable Securities [Member] | Maximum [Member]
Investment, Maturity Period (Day)					200 days	364 days
Investment, Remaining Maturity Period (Day)					90 years	167 days
Vehicle Maintenance, Detailing, and Safety Inspection [Member]
Revenue from Contract with Customer, Including Assessed Tax					$ 0	$ 118,000
Customer Concentration Risk [Member] | Revenue Benchmark [Member]
Number of Major Customers					3	4
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Three Customers [Member]
Concentration Risk, Percentage					43.00%
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Four Customers [Member]
Concentration Risk, Percentage						63.00%
Customer Concentration Risk [Member] | Accounts Receivable [Member]
Number of Major Customers					3	4
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Three Customers [Member]
Concentration Risk, Percentage					37.00%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Four Customers [Member]
Concentration Risk, Percentage						81.00%
Supplier Concentration Risk [Member] | Deposits Outstanding [Member]
Number of Vendors					3	2
Supplier Concentration Risk [Member] | Deposits Outstanding [Member] | Three Suppliers [Member]
Concentration Risk, Percentage					70.00%
Supplier Concentration Risk [Member] | Deposits Outstanding [Member] | Two Suppliers [Member]
Concentration Risk, Percentage						96.00%
Supplier Concentration Risk [Member] | Cost of Goods and Service Benchmark [Member]
Number of Vendors						1
Supplier Concentration Risk [Member] | Cost of Goods and Service Benchmark [Member] | One Supplier [Member]
Concentration Risk, Percentage						85.00%
Fair Value, Recurring [Member]
Assets, Fair Value Disclosure				$ 0	$ 0
Liabilities, Fair Value Disclosure				$ 0	$ 0