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Note 11 - Subsequent Events (Details Textual) - USD ($)
1 Months Ended 190 Months Ended
Feb. 22, 2018
Feb. 21, 2018
Jan. 11, 2018
Feb. 22, 2017
Jan. 19, 2017
Oct. 04, 2016
Aug. 31, 2015
Mar. 31, 2018
Jan. 31, 2018
Dec. 31, 2017
Jan. 02, 2018
Apr. 19, 2017
Dec. 31, 2016
Sep. 30, 2016
Stock Issued During Period, Shares, New Issues           400,000                
Share Price                           $ 4.125
Class of Warrant or Right, Exercise Price of Warrants or Rights                          
Proceeds from Issuance or Sale of Equity             $ 13,800,000              
Common Stock, Par or Stated Value Per Share           $ 0.01       $ 0.01   $ 0.01 $ 0.01  
Common Stock, Shares, Outstanding                   6,943,283     4,564,428  
Over-Allotment Option [Member]                            
Proceeds from Issuance or Sale of Equity       $ 358,312           $ 358,312        
Sale of Stock, Underwriter Option, Maximum Additional Shares of Common Stock Available for Purchase         175,000                  
Sale of Stock, Underwriter Option, Number of Securities Called by Maximum Additional Warrants Available for Purchase         35,000                  
Sale of Stock, Underwriter Option, Exercise Price of Additional Warrants Available for Purchase         $ 0.01                  
Subsequent Event [Member]                            
Common Stock, Par or Stated Value Per Share   $ 0.01                 $ 0.01      
Subsequent Event [Member] | Helomics Holding Corp. [Member]                            
Common Stock, Shares, Outstanding 13,333,333 10,000,000                        
Subsequent Event [Member] | Helomics Holding Corp. [Member]                            
Stock Issued During Period, Shares, New Issues     1,100,000                      
Share Exchange Agreement, Shares Received     2,500,000                      
Share Exchange Agreement, Convertible Notes Receivable     $ 500,000                      
Share Exchange Agreement, Convertible Notes, Percent of Stock     5.00%         5.00%            
Share Exchange Agreement, Potential Interest     25.00%                      
Share Exchange Agreement, Contingent Revenue, Minimum     $ 8,000,000                      
Convertible Preferred Stock Held, Conversion Feature, Percent     20.00%                      
Financing Receivable, Net $ 167,512.50 $ 667,512.50           $ 167,512.10            
Share Exchange Agreement, Outstanding Receivables, Amount Converted $ 500,000             $ 500,000            
Share Exchange Agreement, Shares Received Upon Conversion of Receivables 833,333             833,333            
Holding Interest, Preferred Stock   2,500,000                        
Holding Interest, Common Stock 3,333,333                          
Investment, Ownership Percent 25.00%             25.00%            
Subsequent Event [Member] | The 2018 Public Offering [Member]                            
Stock Issued During Period, Shares, New Issues                 2,900,000          
Share Price                 $ 0.95          
Proceeds from Issuance or Sale of Equity                 $ 2,755,000          
Subsequent Event [Member] | The 2018 Public Offering [Member] | Series E Warrants [Member]                            
Class of Warrant or Right, Issued per Unit                 0.3          
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right                 1          
Class of Warrant or Right, Exercise Price of Warrants or Rights                 $ 1          
Subsequent Event [Member] | Over-Allotment Option [Member]                            
Stock Issued During Period, Shares, New Issues   215,247                        
Share Price   $ 0.9497                        
Sale of Stock, Underwriter Option Term                 45 days          
Sale of Stock, Underwriter Option, Maximum Additional Shares of Common Stock Available for Purchase                 290,000          
Sale of Stock, Underwriter Option, Number of Securities Called by Maximum Additional Warrants Available for Purchase                 87,000          
Sale of Stock, Underwriter Option, Exercise Price of Additional Warrants Available for Purchase                 $ 0.001          
Proceeds from Underwriter Shares Exercised, Net   $ 188,066                        
Stock Issued During Period, Underwriter Discount   $ 16,354                        
Underwriter Discount Percentage   8.00%