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Note 1 - Summary of Significant Accounting Policies (Details Textual)
9 Months Ended 12 Months Ended
Sep. 30, 2024
USD ($)
Sep. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
Number of Tumor Samples 150,000    
Number of Operating Segments 2    
Retained Earnings (Accumulated Deficit) $ 178,256,677   $ 167,761,883
Cash and Cash Equivalents, at Carrying Value 3,078,955   8,728,660
Liabilities, Current 3,816,766   3,951,031
Operating Lease, Liability, Noncurrent 1,704,453   $ 2,130,977
Net Cash Provided by (Used in) Operating Activities, Continuing Operations $ 8,913,589 $ 9,060,285  
Accounts Receivable [Member] | Customer Concentration Risk [Member]      
Number of Major Customers 2   1
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer One [Member]      
Concentration Risk, Percentage 25.00%    
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer Two [Member]      
Concentration Risk, Percentage 16.00%    
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Single Customer [Member]      
Concentration Risk, Percentage     16.00%