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Note 12 - Stock Options, Incentive Plans, Stock Awards, and Employee Benefit Plan (Details Textual) |  |  |  |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 05, 2021 $ / shares shares | Dec. 15, 2020 USD ($) $ / shares shares | Aug. 12, 2020 $ / shares shares | Apr. 01, 2020 shares | Dec. 31, 2020 USD ($) $ / shares shares | Dec. 31, 2019 USD ($) $ / shares shares | Oct. 15, 2020 $ / shares | Oct. 05, 2018 $ / shares shares | Aug. 21, 2018 USD ($) $ / shares shares
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares) |  |  |  |  | 121,867 |  |  |  |
Payment, Tax Withholding, Share-based Payment Arrangement | $ |  |  |  |  | $ 227,766 |  |  |  |
Share Price (in dollars per share) | $ / shares |  |  |  |  | $ 2.67 |  | $ 1.5779 |  |
Warrants and Rights Outstanding, Reduction of Revenue During Period | $ |  |  |  |  | $ 35,943 | $ 35,940 |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  | $ 0.001 |  |  | $ 0.001 | $ 0.001 |  |  |
Measurement Input, Risk Free Interest Rate [Member] |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  |  |  |  |  |  | 0.0277
Measurement Input, Expected Term [Member] |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  |  |  |  |  |  | 5
Measurement Input, Expected Dividend Rate [Member] |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  |  |  |  |  |  | 0
Measurement Input, Price Volatility [Member] |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  |  |  |  |  |  | 0.646
Common Stock Warrants [Member] |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  |  |  |  |  | 150,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  | $ 3.46 |  |  |  |  |  |
Warrants and Rights Outstanding | $ |  |  |  |  |  |  |  |  | $ 135,764
Stock Issued During Period, Shares, Warrants Exercised (in shares) |  |  | 27,051 |  |  |  |  |  |
Class of Warrant or Right, Number of Warrants Exercised (in shares) |  |  | 60,000 |  |  |  |  |  |
Common Stock Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares | $ 5.88 |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Warrants Exercised (in shares) | 19,795 |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Warrants Exercised (in shares) | 30,000 |  |  |  |  |  |  |  |
Common Stock Warrants, Tranche One [Member] |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  |  |  |  |  | 30,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  |  |  |  |  |  | $ 1.80 |
Common Stock Warrants, Tranche One [Member] | Measurement Input, Share Price [Member] |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  |  |  |  |  |  | 0.94
Common Stock Warrants, Tranche Two through Five [Member] |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  |  |  |  | 120,000 | 120,000
Warrants and Rights Outstanding, Term (Year) |  |  |  |  |  |  |  |  | 4 years
Class of Warrant or Right, Exercise Price of Warrants or Rights, Maximum Percentage of Market Price of Common Stock |  |  |  |  |  |  |  |  | 120.00%
Common Stock Warrants, Tranche Two through Five [Member] | Measurement Input, Share Price [Member] |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  |  |  |  |  |  | 0.9
Common Stock Warrants, Tranche Two through Five [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  | $ 2
Common Stock Warrants, Tranche Two [Member] |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  |  |  |  |  | 30,000
Warrants Issued to Acquire Information Management Solutions, LLC [Member] |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  | 945,599 |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  | $ 4.23 |  |  |  |  |  |  |
Warrants and Rights Outstanding | $ |  | $ 552,283 |  |  |  |  |  |  |
Class of Warrant or Right, Issued During Period (in shares) |  | 945,599 |  |  |  |  |  |  |
Class of Warrant or Right, Term Following Vesting (Year) |  | 5 years |  |  |  |  |  |  |
Warrants Issued to Acquire Information Management Solutions, LLC [Member] | Measurement Input, Share Price [Member] |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  | 0.58 |  |  |  |  |  |  |
Warrants Issued to Acquire Information Management Solutions, LLC [Member] | Measurement Input, Risk Free Interest Rate [Member] |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  | 0.0009 |  |  |  |  |  |  |
Warrants Issued to Acquire Information Management Solutions, LLC [Member] | Measurement Input, Expected Term [Member] |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  | 5 |  |  |  |  |  |  |
Warrants Issued to Acquire Information Management Solutions, LLC [Member] | Measurement Input, Expected Dividend Rate [Member] |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  | 0 |  |  |  |  |  |  |
Warrants Issued to Acquire Information Management Solutions, LLC [Member] | Measurement Input, Price Volatility [Member] |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  | 0.599 |  |  |  |  |  |  |
Common Stock Warrants, Tranche Three [Member] |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  |  |  |  | 30,000 |
Common Stock Warrants, Tranche Four [Member] |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  |  |  |  | 30,000 |
Common Stock Warrants, Tranche Five [Member] |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  |  |  |  | 30,000 |
Restricted Stock [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  |  |  | 1,634,000 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) |  |  |  |  | 10 years |  |  |  |
Share-based Payment Arrangement, Expense | $ |  |  |  |  | $ 1,475,328 | $ 1,292,419 |  |  |
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount | $ |  |  |  |  | $ 5,926,872 |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) |  |  |  |  | 6 years 343 days |  |  |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  |  | 103,000 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) |  |  |  | 3 years |  |  |  |  |
Equity Incentive Plan 2025 [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) |  |  |  |  | 5,000,000 |  |  |  |
Increase in Capital Shares Reserved for Future Issuance Per Year [Member] |  |  |  |  | 5.00% |  |  |  |
Equity Incentive Plan 2025 [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  |  |  | 1,634,000 |  |  |  |
Equity Incentive Plan 2025 [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  |  |  | 332,267 |  |  |  |
The 1999 Employee Stock Purchase Plan [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent |  |  |  |  | 85.00% |  |  |  |
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares) |  |  |  |  | 0 | 0 |  |  |

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