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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