Registration of securities issued in business combination transactions

Note 3 - Summary of Significant Accounting Policies (Details Textual)

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Note 3 - Summary of Significant Accounting Policies (Details Textual)
 3 Months Ended 12 Months Ended
Apr. 11, 2023
$ / shares
shares
Apr. 05, 2023
USD ($)
$ / shares
shares
Dec. 14, 2022
USD ($)
$ / shares
shares
Dec. 09, 2022
USD ($)
$ / shares
shares
Jan. 05, 2022
USD ($)
Jan. 02, 2022
USD ($)
$ / shares
shares
Mar. 31, 2024
USD ($)
$ / shares
Mar. 31, 2023
USD ($)
Dec. 31, 2023
USD ($)
$ / shares
Dec. 31, 2022
USD ($)
$ / shares
Placement Agent Fee, Percentage of Gross Proceeds       6.00%            
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares             $ 0.0001   $ 0.0001 $ 0.0001
Proceeds from Issuance of Common Stock                 $ 6,000,000 $ 13,832,000
Cash, FDIC Insured Amount             $ 250,000   250,000  
Cash, Uninsured Amount             1,000,000   3,100,000  
Prepaid Expense, Current             404,000   640,000 46,000
Prepaid Expense, Noncurrent             61,000   61,000 49,000
Contract with Customer, Liability             140,000   42,000 36,000
Advertising Expense                 188,000 93,000
Depreciation             $ 203,000 $ 155,000 $ 758,000 $ 465,000
Pharmacy Records and Developed Software [Member]                    
Finite-Lived Intangible Asset, Useful Life (Year)                 5 years  
Trade Names and Customer Contracts [Member]                    
Finite-Lived Intangible Asset, Useful Life (Year)                 10 years  
Closing Rate [Member]                    
Foreign Currency Exchange Rate, Translation             1.28 1.23 1.27 1.21
Yearly Average Rate [Member]                    
Foreign Currency Exchange Rate, Translation             1.27 1.22 1.24 1.24
Maximum [Member]                    
Cash, FDIC Insured Amount             $ 250,000   $ 250,000  
Officer [Member]                    
Placement Agent Fee, Percentage of Gross Proceeds       3.00%            
December 2022 Private Placement [Member]                    
Number of Warrants Per Unit (in shares) | shares     1 1            
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares     1 1            
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares     $ 1.75 $ 1.75            
Warrants and Rights Outstanding, Term (Year)     3 years 3 years            
December 2022 Private Placement [Member] | Dawson James [Member]                    
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares       $ 1.75            
Warrants and Rights Outstanding, Term (Year)       3 years            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares       549,051            
Legal Fees       $ 100,000            
January 2022 Private Placement [Member]                    
Sale of Stock, Number of Shares Issued in Transaction (in shares) | shares           2,229,950        
Sale of Stock, Price Per Share (in dollars per share) | $ / shares           $ 3.24        
Stock Issued During Period, Value, New Issues         $ 7,200,000 $ 7,225,038       $ 7,005,000
Shares Issued, Price Per Share (in dollars per share) | $ / shares           $ 3.24        
Stock Issued During Period, Shares, New Issues (in shares) | shares           2,229,950        
Proceeds from Issuance of Common Stock           $ 7,000,000        
December 2022 Private Placement [Member]                    
Stock Issued During Period, Value, New Issues                   $ 7,472,000
Equity Offering, Units Issued (in shares) | shares     4,575,429 4,575,429            
Number of Shares Per Unit Issued (in shares) | shares     1 1            
Shares Issued, Price Per Share (in dollars per share) | $ / shares     $ 1.75 $ 1.75            
Proceeds From Equity Offering     $ 8,000,000              
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares     $ 0.0001              
April 2023 Private Placement [Member]                    
Stock Issued During Period, Value, New Issues                 $ 6,000,000  
Shares Issued, Price Per Share (in dollars per share) | $ / shares $ 1.75 $ 1.75                
Stock Issued During Period, Shares, New Issues (in shares) | shares 3,428,571 3,428,571                
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares $ 0.0001 $ 0.0001                
Proceeds from Issuance of Common Stock   $ 6,000,000