v3.25.2
Note 2 - Summary of Significant Accounting Policies (Details Textual)
$ / shares in Units, shares in Thousands, $ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
May 31, 2025
USD ($)
$ / shares
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Jun. 20, 2025
Feb. 28, 2025
Cash, Uninsured Amount   $ 500   $ 500        
Number of Operating Segments       1        
Financing Receivable, Number of Portfolio Segments   3   3        
Tangible Asset Impairment Charges       $ 0   $ 0    
Revenue from Contract with Customer, Excluding Assessed Tax   $ 212 $ 93 355 $ 175      
Advertising Expense   $ 50 $ 48 $ 133 96      
Series A Convertible Preferred Stock [Member]                
Preferred Stock, Shares Outstanding (in shares) | shares   0   0        
Software Upgrade Services [Member]                
Revenue from Contract with Customer, Excluding Assessed Tax       $ 0 $ 0      
Cardionomix Inc. [Member]                
Notes Payable   $ 1,300   1,300        
Cardionomix Inc. [Member] | Restricted Stock [Member]                
Stock Issued During Period, Value, New Issues       $ 300        
Cardionomix Inc. [Member]                
Subsidiary, Ownership Percentage, Parent   82.00%   82.00%       82.00%
Cardionomix Inc. [Member] | Chief Executive Officer and Chairman of the Board [Member]                
Subsidiary, Ownership Percentage, Parent   12.00%   12.00%        
Cardionomix Inc. [Member] | Certain Third Parties [Member]                
Subsidiary, Ownership Percentage, Parent   6.00%   6.00%        
KardioNav, Inc. [Member]                
Subsidiary, Ownership Percentage, Parent   57.00%   57.00%     57.00%  
KardioNav, Inc. [Member] | Chief Executive Officer and Chairman of the Board [Member]                
Subsidiary, Ownership Percentage, Parent   10.00%   10.00%        
KardioNav, Inc. [Member] | Certain Third Parties [Member]                
Subsidiary, Ownership Percentage, Parent   33.00%   33.00%        
QHSLabs Notes [Member]                
Receivable with Imputed Interest, Face Amount   $ 1,449   $ 1,449        
Debt Securities, Available-for-Sale $ 864 874   874        
Debt Securities, Unrealized Gain (Loss)       10        
Debt Securities, Available-for-Sale, Amortized Cost   1,702   1,702        
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss   $ 253   $ 253        
QHSLabs Notes [Member] | The 2021 Note [Member]                
Receivable with Imputed Interest, Face Amount $ 806              
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              
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 3 5      
Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] | Customer One [Member]                
Concentration Risk, Percentage   11.00% 30.00% 38.00% 17.00%      
Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] | Customer Two [Member]                
Concentration Risk, Percentage   36.00% 50.00% 13.00% 19.00%      
Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] | Customer Three [Member]                
Concentration Risk, Percentage   15.00% 12.00% 13.00% 10.00%      
Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] | Customer Four [Member]                
Concentration Risk, Percentage         16.00%      
Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] | Customer Five [Member]                
Concentration Risk, Percentage         27.00%      
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       19.00%   13.00%    
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer Two [Member]                
Concentration Risk, Percentage       30.00%   19.00%    
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer Three [Member]                
Concentration Risk, Percentage       23.00%   46.00%    
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer Four [Member]                
Concentration Risk, Percentage       12.00%   16.00%    
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer Five [Member]                
Concentration Risk, Percentage       10.00%        
Supplier Concentration Risk [Member] | Accounts Payable [Member]                
Number of Vendors       2   3    
Supplier Concentration Risk [Member] | Accounts Payable [Member] | Vendor One [Member]                
Concentration Risk, Percentage       57.00%   15.00%    
Supplier Concentration Risk [Member] | Accounts Payable [Member] | Vendor Two [Member]                
Concentration Risk, Percentage       10.00%   28.00%    
Supplier Concentration Risk [Member] | Accounts Payable [Member] | Vendor Three [Member]                
Concentration Risk, Percentage           18.00%