v3.26.1
Note 10 - Noncontrolling Interest - Clyra Medical (Details Textual)
1 Months Ended 3 Months Ended 12 Months Ended 66 Months Ended
Dec. 04, 2024
USD ($)
Oct. 31, 2025
USD ($)
$ / shares
shares
Jun. 30, 2024
USD ($)
shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2023
USD ($)
$ / shares
Dec. 13, 2022
Payments to Acquire Notes Receivable         $ (0) $ 82,000      
Warrants and Rights Outstanding         $ 5,000   $ 5,000    
Class of Warrant or Right, Issued During Period (in shares) | shares         2,263,160 4,127,516      
Debt Conversion, Converted Instrument, Amount         $ 250,000 $ 0      
Stock Issued During Period, Shares, Issued for Services (in shares) | shares         2,807,771 1,107,594      
Stock Issued During Period, Value, Issued for Services         $ 557,000 $ 284,000      
Share Price (in dollars per share) | $ / shares         $ 0.18   $ 0.18 $ 0.18  
Measurement Input, Price Volatility [Member] | Minimum [Member]                  
Warrants and Rights Outstanding, Measurement Input       0.64 0.72 0.64 0.72    
Measurement Input, Price Volatility [Member] | Maximum [Member]                  
Warrants and Rights Outstanding, Measurement Input       0.87 0.73 0.87 0.73    
Measurement Input, Risk Free Interest Rate [Member] | Minimum [Member]                  
Warrants and Rights Outstanding, Measurement Input       0.0415 0.0367 0.0415 0.0367    
Measurement Input, Risk Free Interest Rate [Member] | Maximum [Member]                  
Warrants and Rights Outstanding, Measurement Input       0.0538 0.0373 0.0538 0.0373    
Conversion From Convertible Notes to Shares of Clyra Common Stock [Member]                  
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares         41,667        
Convertion of Debt to Shares of Clyra Common Stock [Member]                  
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares     148,156            
Debt Conversion, Converted Instrument, Amount     $ 741,000            
Clyra Medical [Member]                  
Shares, Outstanding (in shares) | shares       10,544,527 11,375,860 10,544,527 11,375,860    
Shares Issued, Price Per Share (in dollars per share) | $ / shares               $ 3.1  
Stock Issued During Period, Shares, New Issues (in shares) | shares         72,244 373,875      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares       441,336   441,336      
Proceeds from Issuance or Sale of Equity         $ 445,000        
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) | shares         1,036,829 497,942      
Finance Lease, Liability         $ 360,000   $ 360,000    
Clyra Medical [Member] | Vendors [Member]                  
Warrants and Rights Outstanding       $ 7,000   $ 7,000      
Stock Issued During Period, Shares, Issued for Services (in shares) | shares         37,582 11,331      
Stock Issued During Period, Value, Issued for Services         $ 100,000 $ 29,000      
Clyra Medical [Member] | Employees and Consultants [Member]                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) | shares         1,036,829 497,942      
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)         10 years        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Fair Value         $ 1,760,000 $ 528,000      
Clyra Medical [Member] | Employees and Consultants [Member] | Options With the Exercise Price of 4.5 [Member]                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) | shares         965,930        
Clyra Medical [Member] | Employees and Consultants [Member] | Options With the Exercise Price of 3.1 [Member]                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) | shares         70,899        
Clyra Medical [Member] | Employees and Consultants [Member] | Share-Based Payment Arrangement, Option [Member]                  
Share Price (in dollars per share) | $ / shares       $ 3.1 $ 4.5 $ 3.1 $ 4.5    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Discount Rate         30.00%        
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum         3.48% 3.95%      
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum         4.45% 4.34%      
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum         21.00% 43.00%      
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum         49.00% 49.00%      
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term (Year)           10 years      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount         $ 1,490,000   $ 1,490,000    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)         3 years        
Clyra Medical [Member] | Series A Preferred Stock [Member]                  
Shares, Outstanding (in shares) | shares       746,418 746,418 746,418 746,418    
Preferred Stock, Dividend Rate, Percentage         15.00%        
Preferred Stock, Convertible, Sale of Stock Amount               $ 5,000,000  
Clyra Medical [Member] | Series B Preferred Stock [Member]                  
Shares, Outstanding (in shares) | shares         330,000   330,000    
Clyra Medical [Member] | Sale Leaseback of Equipment [Member]                  
Receivable with Imputed Interest, Effective Yield (Interest Rate) 15.00%                
Proceeds from Sale of Property, Plant, and Equipment $ 350,000                
Financing Receivable, after Allowance for Credit Loss 82,000                
Lessee, Finance Lease, Purchase Option, Amount $ 82,000                
Lessee, Finance Lease, Term of Contract (Month) 49 months                
Finance Lease, Liability         $ 450,000   $ 450,000    
Clyra Medical [Member] | Revolving Credit Facility [Member] | Vernal Bay Capital Group, LLC [Member] | Inventory Line of Credit [Member]                  
Line of Credit Facility, Monthly Percentage of Gross Product Sales Required to be Used as Payment of Debt on First 180 Days         30.00%   30.00%    
Line of Credit Facility, Maximum Borrowing Capacity         $ 1,000,000   $ 1,000,000    
Proceeds from Lines of Credit, Total             260,000    
Repayments of Lines of Credit             126,000    
Debt Instrument, Percentage of Principal Payment, Cap                 15.00%
Long-Term Line of Credit       $ 134,000 $ 134,000 $ 134,000 $ 134,000    
Clyra Medical [Member] | Measurement Input, Price Volatility [Member] | Minimum [Member]                  
Warrants and Rights Outstanding, Measurement Input       21   21      
Clyra Medical [Member] | Measurement Input, Price Volatility [Member] | Maximum [Member]                  
Warrants and Rights Outstanding, Measurement Input       0.49   0.49      
Clyra Medical [Member] | Measurement Input, Discount Rate [Member]                  
Warrants and Rights Outstanding, Measurement Input       0.30   0.30      
Clyra Medical [Member] | Measurement Input, Risk Free Interest Rate [Member] | Minimum [Member]                  
Warrants and Rights Outstanding, Measurement Input       3.95 3.48 3.95 3.48    
Clyra Medical [Member] | Measurement Input, Risk Free Interest Rate [Member] | Maximum [Member]                  
Warrants and Rights Outstanding, Measurement Input       4.34 4.45 4.34 4.45    
Clyra Medical [Member] | Measurement Input, Expected Term [Member] | Minimum [Member]                  
Warrants and Rights Outstanding, Measurement Input       0.5   0.5      
Clyra Medical [Member] | Measurement Input, Expected Term [Member] | Maximum [Member]                  
Warrants and Rights Outstanding, Measurement Input       5   5      
Clyra Medical [Member] | Warrants Issued Concurrently with Note Payable [Member]                  
Debt Instrument, Interest Rate, Stated Percentage         15.00%   15.00%    
Debt Instrument, Face Amount         $ 575,000   $ 575,000    
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares         $ 6   $ 6    
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares         72,667   72,667    
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares         $ 6.5   $ 6.5    
Clyra Medical [Member] | Warrant In Connection With Convertible Note [Member]                  
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares         41,667   41,667    
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares         $ 7.5   $ 7.5    
Warrants and Rights Outstanding, Measurement Input         6   6    
Clyra Medical [Member] | Warrant in Connection with Guaranteed Note [Member]                  
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares         88,462   88,462    
Warrants and Rights Outstanding         $ 80,000   $ 80,000    
Long-Term Debt, Gross         $ 575,000   $ 575,000    
Clyra Medical [Member] | Warrants Expiring February 28, 2027 [Member]                  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares         $ 7.5   $ 7.5    
Warrants and Rights Outstanding       $ 163,000 $ 45,000 $ 163,000 $ 45,000    
Class of Warrant or Right, Issued During Period (in shares) | shares         36,122        
Number of Accredited Investors       29 6 29 6    
Proceeds from Issuance or Sale of Equity           $ 2,005,000      
Clyra Medical [Member] | March 31, 2025 Warrants [Member]                  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares         $ 6   $ 6    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares         5,707   5,707    
Warrants and Rights Outstanding, Term (Month)         5 years   5 years    
Clyra Medical [Member] | Vendor Warrants [Member]                  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares         $ 7.5   $ 7.5    
Warrants and Rights Outstanding         $ 8,000   $ 8,000    
Warrants and Rights Outstanding, Term (Month)         3 years   3 years    
Class of Warrant or Right, Issued During Period (in shares) | shares         13,847        
Clyra Medical [Member] | Warrants Issued With Promissory Notes [Member]                  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares       $ 6   $ 6      
Warrants and Rights Outstanding       $ 160,000   $ 160,000      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares       177,333   177,333      
Warrants and Rights Outstanding, Term (Month)       5 years   5 years      
Clyra Medical [Member] | Saleleaseback Warrants [Member]                  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares       $ 6   $ 6      
Warrants and Rights Outstanding       $ 106,000   $ 106,000      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares       58,333   58,333      
Warrants and Rights Outstanding, Term (Month)       5 years   5 years      
Clyra Medical [Member] | Clyra Unit Offering [Member]                  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares       $ 7.5   $ 7.5      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares       205,670   205,670      
Clyra Medical [Member] | Notes Payable, Other Payables [Member]                  
Proceeds from Issuance of Debt       $ 1,064,000          
Debt Instrument, Interest Rate, Stated Percentage       15.00% 15.00% 15.00% 15.00%    
Debt Instrument, Face Amount         $ 436,000   $ 436,000    
Warrants and Rights Outstanding         99,000   99,000    
Long-Term Debt, Gross       $ 864,000 $ 1,300,000 $ 864,000 $ 1,300,000    
Clyra Medical [Member] | Notes Payable, Other Payables [Member] | Biolargo [Member]                  
Payments to Acquire Notes Receivable       $ 200,000          
Clyra Medical [Member] | Convertible Debt [Member]                  
Debt Instrument, Interest Rate, Stated Percentage         15.00%   15.00%    
Debt Instrument, Face Amount         $ 250,000   $ 250,000    
Warrants and Rights Outstanding         $ 52,000   $ 52,000    
Debt Instrument, Term (Year)         2 years        
Clyra Medical Technologies [Member] | Series A Preferred Stock [Member]                  
Stock Issued During Period, Shares, New Issues (in shares) | shares         0 0      
Clyra Medical Technologies [Member] | Series B Preferred Stock [Member]                  
Stock Issued During Period, Shares, New Issues (in shares) | shares   330,000              
Proceeds from Issuance of Preferred Stock and Preference Stock   $ 2,145,000              
Clyra Medical Technologies [Member] | Warrants Issued With Secured Promissory Notes and Convertible Promissory Notes [Member] | Valuation Technique, Black-Scholes-Merton Model [Member] | Measurement Input, Price Volatility [Member] | Minimum [Member]                  
Warrants and Rights Outstanding, Measurement Input         21   21    
Clyra Medical Technologies [Member] | Warrants Issued With Secured Promissory Notes and Convertible Promissory Notes [Member] | Valuation Technique, Black-Scholes-Merton Model [Member] | Measurement Input, Price Volatility [Member] | Maximum [Member]                  
Warrants and Rights Outstanding, Measurement Input         43   43    
Clyra Medical Technologies [Member] | Warrants Issued in October 2025 Offering [Member]                  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares   $ 7.5              
Warrants and Rights Outstanding   $ 94,000              
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares   165,000              
Warrants and Rights Outstanding, Term (Month)   3 years              
Clyra Medical Technologies [Member] | Warrant Holder Unit Offering [Member]                  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares         $ 7.5   $ 7.5    
Warrants and Rights Outstanding         $ 212,000   $ 212,000    
Class of Warrant or Right, Issued During Period (in shares) | shares         336,916        
Number of Accredited Investors         26   26    
Proceeds from Issuance or Sale of Equity         $ 1,894,000        
Clyra Medical [Member]                  
Subsidiary, Ownership Percentage, Parent         48.00%   48.00%    
Clyra Medical [Member] | Common Stock [Member]                  
Investment Owned, Balance, Shares (in shares) | shares         5,470,921   5,470,921    
Clyra Medical [Member] | Preferred Stock, Series A [Member]                  
Investment Owned, Balance, Shares (in shares) | shares         165,765   165,765