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Note 2 - Equity Method Investment (Details Textual) - Helomics Holding Corp. [Member] - USD ($)
12 Months Ended
Dec. 31, 2018
Feb. 27, 2018
Equity Method Investment, Ownership Percentage 75.00% 80.00%
Equity Method Investment, Summarized Financial Information, Revenue $ 523,546  
Financing Receivable, Net, Total 413,683  
Financing Receivable, Gross 1,165,013  
Fair Value Adjustment of Notes Receivable (751,330)  
Equity Method Investments 0  
Contract Research Organization and D-CHIP Artificial Intelligence Products [Member]    
Equity Method Investment, Summarized Financial Information, Revenue $ 31,000