v3.26.1
Note 2 - Liquidity and Summary of Significant Accounting Policies (Details Textual)
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jan. 21, 2026
USD ($)
Jan. 01, 2026
USD ($)
Dec. 31, 2025
USD ($)
Mar. 31, 2025
USD ($)
May 31, 2026
USD ($)
Jan. 31, 2026
USD ($)
Feb. 28, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
shares
Jun. 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    
Proceeds from Notes Payable                   1,175,000 $ 0  
Retained Earnings (Accumulated Deficit)     $ (34,772,162)         $ (35,668,229)   (35,668,229)   $ (34,772,162)
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation               400,000   $ 400,000    
Number of Operating Segments                   1    
Number of Reporting Units                   1    
Accounts Receivable, Credit Loss Expense (Reversal)               0 $ 0 $ 0 12,525  
Accounts Receivable, Allowance for Credit Loss     90,000         90,000   90,000   90,000
Inventory, Finished Goods, Gross     139,000         185,000   185,000   139,000
Inventory, Raw Materials, Gross     75,000         85,000   85,000   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               1,619,000   2,766,000    
Aurix and Private Label Centrifuge Devices [Member]                        
Revenue from Contract with Customer, Excluding Assessed Tax               $ 72,000   $ 149,000    
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              
Distribution Agreement [Member]                        
Proceeds from Fees Received   $ 50,000                    
Distribution Agreement [Member]                        
Proceeds from Fees Received   $ 50,000   $ 1,500,000     $ 1,500,000         $ 1,500,000
Agreement, Initial Term       5 years                
Revenue, Remaining Performance Obligation, Amount               $ 1,170,000   $ 1,170,000