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Note 9 - Stockholders' Equity (Details Textual) |  |  |  |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 03, 2024 USD ($) shares | May 26, 2023 $ / shares | Jun. 22, 2022 USD ($) $ / shares shares | May 17, 2022 USD ($) $ / shares shares | Mar. 31, 2024 USD ($) $ / shares shares | Mar. 31, 2023 USD ($) shares | Dec. 31, 2013 USD ($) | Dec. 31, 2023 $ / shares shares | Sep. 30, 2023 $ / shares shares
Common Stock, Shares Authorized (in shares) |  |  |  |  | 50,000,000 |  |  | 50,000,000 |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  | $ 0.001 |  |  | $ 0.001 |  |  | $ 0.001 |
Common Stock, Shares, Issued (in shares) |  |  |  |  | 5,807,340 | 5,658,930 |  | 5,727,310 |
Preferred Stock, Shares Authorized (in shares) |  |  |  |  | 2,500,000 |  |  | 2,500,000 |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  |  |  | $ 0.001 |  |  | $ 0.001 |
Preferred Stock, Shares Issued (in shares) |  |  |  |  | 0 |  |  | 0 |
Class of Warrant or Right, Issued During Period (in shares) |  |  |  |  | 0 | 0 |  |  |
Common Stock, Shares, Outstanding (in shares) |  |  |  |  | 5,807,340 | 5,658,930 |  | 5,727,310 |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  |  |  | 298,967 |  |  |  |
Share-Based Payment Arrangement, Expense | $ |  |  |  |  | $ 193,321 | $ 157,174 |  |  |
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount | $ |  |  |  |  | $ 1,198,062 |  |  |  |
Restricted Stock Units (RSUs) [Member] | The 2022 Incentive Plan [Member] |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  |  |  | 353,216 |  |  |  |
Public Offering [Member] |  |  |  |  |  |  |  |  |
Shares Issued, Price Per Share (in dollars per share) | $ / shares |  |  |  | $ 4 |  |  |  |  |
Private Placement [Member] |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Debt | $ |  |  | $ 6,000,000 |  |  |  |  |  |
Warrant Purchase Agreement [Member] |  |  |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  |  | $ 0.008 |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  | 3,803,133 |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  |  | $ 3.992 |  |  |  |  |
Proceeds from Issuance or Sale of Equity, Total | $ |  |  |  | $ 15,182,075 |  |  |  |  |
Private Placement Warrants [Member] |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  | 531,250 |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  | $ 5.2 |  |  |  |  |  |
Class of Warrant or Right, Issued During Period (in shares) |  |  | 28,846 |  |  |  |  |  |
The 2023 Warrants [Member] |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  |  |  |  |  | 531,250
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  | $ 5.2
Warrants and Rights Outstanding, Term (Year) |  |  |  |  |  |  |  |  | 5 years
Director [Member] |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures (in shares) | 24,500 |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures | $ | $ 73,500 |  |  |  |  |  |  |  |
Director [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) |  |  |  |  | 52,082 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Annual Grant | $ |  |  |  |  |  |  | $ 36,750 |  |
Management [Member] |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures (in shares) | 85,528 |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures | $ | $ 289,672 |  |  |  |  |  |  |  |
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares) | 29,998 |  |  |  |  |  |  |  |
Share-Based Payment Arrangement, Amount Withheld for Tax Withholding Obligation | $ | $ 102,567 |  |  |  |  |  |  |  |
Board of Directors Chairman [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Annual Grant | $ |  |  |  |  |  |  | $ 73,500 |  |
Reverse Stock Split [Member] |  |  |  |  |  |  |  |  |
Stockholders' Equity Note, Stock Split, Conversion Ratio |  | 8 |  |  |  |  |  |  |
Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |
Preferred Stock, Shares Issued (in shares) |  |  |  |  | 0 |  |  |  |

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