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Note 6 - Legal Proceedings (Details Textual) - USD ($)								1 Months Ended
	Mar. 16, 2021	Feb. 10, 2021	Oct. 19, 2020	Oct. 15, 2020	Sep. 08, 2020	Apr. 05, 2020	Jan. 27, 2020	Jan. 31, 2019	Mar. 31, 2021	Dec. 31, 2020
Claims Filed by FedEx Trade Networks Transport [Member] | Pending Litigation [Member]
Loss Contingency, Damages Sought, Value							$ 163,964.75
Litigation Settlement, Amount Awarded to Other Party				$ 100,400
Claims Filed by FedEx Trade Networks Transport [Member] | Settled Litigation [Member]
Loss Contingency Accrual, Ending Balance									$ 40,400	$ 70,400
Litigation Settlement, Amount Awarded to Other Party, Monthly Installment				$ 10,000
Litigation Settlement, Amount Awarded to Other Party, Term (Month)				300 days
Litigation Settlement, Amount Awarded to Other Party, Last Payment Amount				$ 10,400
Jules and Associates, Inc. [Member] | Alleged Past Due Amounts Under Lease [Member]
Loss Contingency Accrual, Ending Balance									91,298	75,187
Loss Contingency, Damages Sought, Value			$ 65,846.99			$ 98,244.55
Redwood Multimodal [Member] | Demand for the Withholding of Payment [Member]
Loss Contingency Accrual, Ending Balance									98,961	98,961
Loss Contingency, Damages Sought, Value			$ 98,960.88
Disputed Compensation Amounts by Claimants [Member] | God’s Little Gift, Inc. (d\b\a) Helium and Balloons Across America and Gary Page [Member]
Payments for Legal Settlements								$ 5,000
Loss Contingency Accrual, Ending Balance									38,325	53,659
Disputed Compensation Amounts by Claimants [Member] | God’s Little Gift, Inc. (d\b\a) Helium and Balloons Across America and Gary Page [Member] | Minimum [Member]
Royalty Monthly Payout, Amount								$ 7,667
Disputed Compensation Amounts by Claimants [Member] | God’s Little Gift, Inc. (d\b\a) Helium and Balloons Across America and Gary Page [Member] | Common Stock [Member]
Stock Issued During Period, Shares, New Issues (in shares)								20,000
Airgas USA, LLC v. CTI Industries Corp. [Member] | Pending Litigation [Member]
Loss Contingency, Damages Sought, Value					$ 212,000
Airgas USA, LLC v. CTI Industries Corp. [Member] | Settled Litigation [Member]
Loss Contingency Accrual, Ending Balance									$ 125,000	$ 125,000
Litigation Settlement, Amount Awarded to Other Party		$ 125,000
Litigation Settlement, Amount Awarded to Other Party, Term (Month)		300 days
Benchmark Investments, Inc. v. Yunhong CTI Ltd [Member]
Loss Contingency, Damages Sought, Value	$ 500,000

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