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Note 18 - Stockholders' Equity (Details Textual) - USD ($) |  |  | 1 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 05, 2020 | Apr. 01, 2020 | Apr. 30, 2020 | Feb. 29, 2020 | Jan. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Nov. 20, 2020 | Nov. 19, 2020 | Dec. 31, 2018 | Jun. 08, 2018 | Apr. 10, 2009
Stock Issued During Period, Value, New Issues |  |  |  |  |  | $ 5,426,601 | $ 303,000 |  |  |  |  |
Common Stock, Shares Authorized (in shares) |  |  |  |  |  | 50,000,000 | 50,000,000 | 50,000,000 | 15,000,000 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year) |  |  |  |  |  | 4 years |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) |  |  |  |  |  | 3 years |  |  |  |  |  |
Share-based Payment Arrangement, Expense |  |  |  |  |  | $ 0 | $ 178,000 |  |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total |  |  |  |  |  | $ 0 |  |  |  |  |  |
Class of Warrant or Right, Granted in Period (in shares) |  |  |  |  |  | 792,660 |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  |  | $ 1 |  |  |  |  |  |
Class of Warrant or Right, Exercised During Period (in shares) |  |  |  |  |  | 597,500 |  |  |  |  |  |
Stock Issued During Period, Shares, Warrants Exercised (in shares) |  |  |  |  |  | 391,308 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year) |  |  |  |  |  | 5 years |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate |  |  |  |  |  | 0.00% |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value |  |  |  |  |  | $ 0 |  |  |  |  |  |
Class of Warrant or Right, Outstanding, Intrinsic Value |  |  |  |  |  | $ 140,615 |  |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate |  |  |  |  |  | 0.42% |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate |  |  |  |  |  | 1.65% |  |  |  |  |  |
Series A Preferred Stock Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Granted in Period (in shares) |  |  |  |  |  | 792,660 |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  |  | 792,660 |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  |  | $ 1 |  |  |  |  |  |
Class of Warrant or Right, Exercised During Period (in shares) |  |  |  |  |  | 597,500 |  |  |  |  |  |
Stock Incentive Plan 2009 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) |  |  |  |  |  |  |  |  |  |  |  | 510,000
Stock Incentive Plan 2018 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) |  |  |  |  |  |  |  |  |  |  | 300,000 |
Restricted Stock [Member] | Former Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares) |  |  |  |  |  | 15,000 |  |  |  |  |  |
LF International Pte [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Issued for Services (in shares) |  |  |  |  |  | 400,000 |  |  |  |  |  |
Garden State Securities [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Issued for Services (in shares) |  |  |  |  |  | 200,000 |  |  |  |  |  |
Conversion from Series A Preferred Stock to Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Conversion of Stock, Shares Converted (in shares) |  |  |  |  |  | 90,860 |  |  |  |  |  |
Conversion of Stock, Shares Issued (in shares) |  |  |  |  |  | 941,388 |  |  |  |  |  |
Conversion from Notes Payable To Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  |  |  |  |  |  | $ 600,000 |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued (in shares) |  |  |  |  |  |  | 180,723 |  |  |  |  |
Conversion from Accounts Payable To Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  |  |  |  |  |  | $ 300,000 |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued (in shares) |  |  |  |  |  |  | 100,000 |  |  |  |  |
Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  |  |  | 42,660 |  |  |  |  |  |
Stock Issued During Period, Value, New Issues |  |  |  |  |  | $ 426,600 |  |  |  |  |  |
Convertible Preferred Stock, Shares Issued upon Conversion (in shares) |  |  |  |  |  | 10 |  |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  |  |  |  |  | 8.00% |  |  |  |  |  |
Preferred Stock, Dividend Rate, Per-Dollar-Amount (in dollars per share) |  |  |  |  |  | $ 10 |  |  |  |  |  |
Dividends, Total |  |  |  |  |  | $ 379,655 |  |  |  |  |  |
Preferred Stock Redemption Premium | $ 2,500,000 |  |  |  |  |  |  |  |  |  |  |
Beneficial Conversion Feature of Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |
Series A Preferred Stock [Member] | Conversion of Accounts Receivable Owed to Investor to Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  | $ 478,000 |  |  |  |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued (in shares) |  | 48,200 |  |  |  |  |  |  |  |  |  |
Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  |  |  | 542,660 |  |  |  |  |  |
Stock Issued During Period, Value, New Issues |  |  |  |  |  | $ 5,093,267 |  |  |  |  |  |
Stock Issued During Period, Shares, Warrants Exercised (in shares) |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock [Member] | Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Beneficial Conversion Feature of Preferred Stock |  |  |  |  |  | $ (2,468,473) |  |  |  |  |  |
Common Stock [Member] | Disputed Compensation Amounts by Claimants [Member] | God’s Little Gift, Inc. (d\b\a) Helium and Balloons Across America and Gary Page [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  |  | 20,000 |  |  |  |  |  |  |
Additional Paid-in Capital [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, New Issues |  |  |  |  |  |  | $ 303,000 |  |  |  |  |
Additional Paid-in Capital [Member] | Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Beneficial Conversion Feature of Preferred Stock | $ 2,500,000 |  |  |  |  | 2,468,473 |  |  |  |  |  |
Equity Financing Arrangement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance or Sale of Equity, Total |  |  |  |  |  | $ 5,000,000 |  |  |  |  |  |
Equity Financing Arrangement [Member] | Preferred Stock [Member] | Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  |  |  | 500,000 |  |  |  |  |  |
Equity Financing Arrangement [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  |  |  | 400,000 |  |  |  |  |  |
Equity Financing Arrangement [Member] | Common Stock [Member] | LF International Pte [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  | 260,000 | 140,000 |  |  |  |  |  |  |  |

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