v3.26.3
Note 2 - Liquidity and Summary of Significant Accounting Policies (Details Textual)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Oct. 06, 2026
USD ($)
Jan. 21, 2026
USD ($)
Jan. 01, 2026
USD ($)
Dec. 31, 2025
USD ($)
Jul. 30, 2025
USD ($)
shares
Mar. 31, 2025
USD ($)
Aug. 31, 2026
USD ($)
May 31, 2026
USD ($)
Jan. 31, 2026
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Stock Issued During Period, Shares, New Issues (in shares) | shares         527,612                  
Proceeds from Stock Options Exercised         $ 113,541             $ 0 $ 113,541  
Proceeds from Notes Payable                       1,175,000 0  
Retained Earnings (Accumulated Deficit)       $ (34,772,162)           $ (36,093,157)   (36,093,157)   $ (34,772,162)
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation                   100,000   $ 100,000    
Number of Operating Segments                       1    
Number of Reporting Units                       1    
Accounts Receivable, Credit Loss Expense (Reversal)                   73,960 $ 28,876 $ 73,960 41,401  
Accounts Receivable, Allowance for Credit Loss, Writeoff                   74,000   74,000    
Accounts Receivable, Allowance for Credit Loss       90,000           95,000   95,000   90,000
Inventory, Finished Goods, Gross       139,000           150,000   150,000   139,000
Inventory, Raw Materials, Gross       75,000           180,000   180,000   75,000
Inventory Write-down                   0 $ 0 0 $ 9,119  
Inventory Valuation Reserves       10,000           10,000   10,000   10,000
Aurix and Private Label Kits [Member]                            
Revenue from Contract with Customer, Excluding Assessed Tax                   1,591,000   4,357,000    
Aurix and Private Label Centrifuge Devices [Member]                            
Revenue from Contract with Customer, Excluding Assessed Tax                   $ 189,000   $ 338,000    
Minimum [Member]                            
Property, Plant, and Equipment, Useful Life                   1 year   1 year    
Maximum [Member]                            
Property, Plant, and Equipment, Useful Life                   5 years   5 years    
Loan Agreement With the Initial Lenders [Member]                            
Proceeds from Notes Payable   $ 500,000   $ 500,000         $ 1,000,000          
Loan Agreement Amendment With the Lenders [Member]                            
Proceeds from Notes Payable               $ 675,000            
Loan Agreement Amendment With the Lenders [Member] | Subsequent Event [Member]                            
Proceeds from Notes Payable $ 325,000                          
Distribution Agreement [Member]                            
Proceeds from Fees Received     $ 50,000       $ 250,000              
Distribution Agreement [Member]                            
Proceeds from Fees Received     $ 50,000     $ 1,500,000 $ 250,000             $ 1,500,000
Agreement, Initial Term           5 years                
Revenue, Remaining Performance Obligation, Amount                   $ 1,300,000   $ 1,300,000