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Note 10 - Subsequent Events (Details Textual) - USD ($)
3 Months Ended
May 09, 2019
Apr. 04, 2019
Mar. 31, 2019
Mar. 31, 2018
Apr. 03, 2019
Proceeds from Issuance of Debt     $ 1,250,000  
Subsequent Event [Member] | Loans From Dr. Schwartz [Member] | Chief Executive Officer [Member]          
Proceeds from Issuance of Debt $ 75,000        
Debt Instrument, Interest Rate, Stated Percentage 8.00%        
Helomics Acquisition, Inc. [Member] | Subsequent Event [Member]          
Business Acquisition, Percentage of Voting Interests Acquired   75.00%     25.00%
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares   8,637,323      
Gain (Loss) on Extinguishment of Debt, Total   $ 2,210,382      
Business Acquisition, Revaluation, Gain (Loss) on Acquisition   $ 2,607,544      
Helomics Acquisition, Inc. [Member] | Subsequent Event [Member] | Warrants Issued to Holders of Helomics Notes and Warrants [Member]          
Class of Warrant or Right Issued During Period   14,245,063      
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 900,000      
Helomics Acquisition, Inc. [Member] | Subsequent Event [Member] | Common Stock [Member]          
Business Combination, Consideration Transferred, Total   $ 7,822,632      
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares   4,000,000      
Business Combination, Merger Date Valuation   $ 2,993,200      
Helomics Acquisition, Inc. [Member] | Subsequent Event [Member] | Preferred Stock [Member]          
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares   3,500,000      
Business Combination, Merger Date Valuation   $ 2,619,050