v3.26.1
Note 2 - Summary of Significant Accounting Policies (Details Textual)
1 Months Ended 12 Months Ended
Nov. 30, 2025
USD ($)
May 31, 2025
USD ($)
$ / shares
Dec. 31, 2025
USD ($)
shares
Dec. 31, 2024
USD ($)
shares
Sep. 30, 2025
Jun. 20, 2025
Feb. 28, 2025
Number of Operating Segments     1        
Number of Reportable Segments     1        
Financing Receivable, Number of Portfolio Segments         3    
Impairment of Intangible Assets (Excluding Goodwill)     $ 6,995,000 $ 0      
Accrued Liabilities, Current     1,697,000 1,548,000      
Revenue from Contract with Customer, Excluding Assessed Tax     819,000 420,000      
Advertising Expense     $ 171,000 $ 170,000      
Series X Preferred Stock [Member]              
Preferred Stock, Shares Outstanding (in shares) | shares     0 12,656      
Software Upgrade Services [Member]              
Revenue from Contract with Customer, Excluding Assessed Tax     $ 0 $ 0      
KardioNav, Inc. [Member]              
Accrued Liabilities, Current     17,000        
KardioNav, Inc. [Member] | Related Party [Member]              
Notes Payable, Current     306,000        
Cardionomix Inc. [Member]              
Notes Payable     1,300,000        
Cardionomix Inc. [Member] | Restricted Stock [Member]              
Stock Issued During Period, Value, New Issues     $ 300,000        
Cardionomix Inc. [Member]              
Subsidiary, Ownership Percentage, Parent     82.00%       82.00%
Cardionomix Inc. [Member] | Chief Executive Officer and Chairman of the Board [Member]              
Subsidiary, Ownership Percentage, Parent     12.00%        
Cardionomix Inc. [Member] | Certain Third Parties [Member]              
Subsidiary, Ownership Percentage, Parent     6.00%        
KardioNav, Inc. [Member]              
Subsidiary, Ownership Percentage, Parent     57.00%     57.00%  
KardioNav, Inc. [Member] | Chief Executive Officer and Chairman of the Board [Member]              
Subsidiary, Ownership Percentage, Parent     10.00%        
KardioNav, Inc. [Member] | Certain Third Parties [Member]              
Subsidiary, Ownership Percentage, Parent     33.00%        
QHSLabs Notes [Member]              
Debt Securities, Available-for-Sale   $ 864,000 $ 0        
Proceeds from Sale of Debt Securities, Available-for-Sale $ 300,000            
Debt Securities, Realized Gain (Loss) $ 564,000            
QHSLabs Notes [Member] | The 2021 Note [Member]              
Receivable with Imputed Interest, Face Amount   $ 806,000          
Receivable with Imputed Interest, Effective Yield (Interest Rate)   5.00%          
Receivable with Imputed Interest, Default Yield (Default Interest Rate)   18.00%          
Receivable with Imputed Interest, Conversion Rate (in dollars per share) | $ / shares   $ 20          
QHSLabs Notes [Member] | The 2022 Note [Member]              
Receivable with Imputed Interest, Face Amount   $ 440,000          
Receivable with Imputed Interest, Effective Yield (Interest Rate)   5.00%          
Receivable with Imputed Interest, Default Yield (Default Interest Rate)   18.00%          
Receivable with Imputed Interest, Conversion Rate (in dollars per share) | $ / shares   $ 0.2          
Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member]              
Number of Major Customers     3 3      
Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] | Customer One [Member]              
Concentration Risk, Percentage     28.00% 37.00%      
Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] | Customer Two [Member]              
Concentration Risk, Percentage     12.00% 15.00%      
Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] | Customer Three [Member]              
Concentration Risk, Percentage     10.00% 10.00%      
Customer Concentration Risk [Member] | Accounts Receivable [Member]              
Number of Major Customers     5 4      
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer One [Member]              
Concentration Risk, Percentage     27.00% 46.00%      
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer Two [Member]              
Concentration Risk, Percentage     15.00% 19.00%      
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer Three [Member]              
Concentration Risk, Percentage       16.00%      
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Three Customers [Member]              
Concentration Risk, Percentage     10.00%        
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer Four [Member]              
Concentration Risk, Percentage       13.00%      
Supplier Concentration Risk [Member] | Accounts Payable [Member]              
Number of Vendors     3 3      
Supplier Concentration Risk [Member] | Accounts Payable [Member] | Vendor One [Member]              
Concentration Risk, Percentage     40.00% 28.00%      
Supplier Concentration Risk [Member] | Accounts Payable [Member] | Vendor Two [Member]              
Concentration Risk, Percentage     12.00% 18.00%      
Supplier Concentration Risk [Member] | Accounts Payable [Member] | Vendor Three [Member]              
Concentration Risk, Percentage     10.00% 15.00%