Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Commitments and Contingencies (Details Textual)

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Note 10 - Commitments and Contingencies (Details Textual) - USD ($)
1 Months Ended 3 Months Ended
Mar. 15, 2023
Aug. 30, 2022
Apr. 08, 2022
Nov. 21, 2021
May 27, 2021
Apr. 09, 2018
Mar. 03, 2017
Nov. 30, 2018
Jun. 30, 2016
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Oct. 11, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Aug. 14, 2018
Equity, Including Portion Attributable to Noncontrolling Interest                   $ (786,584) $ (9,547,623) $ (8,143,310)     $ (4,240,647) $ (2,109,442) $ 624,743  
Common Stock [Member]                                    
Stock Issued During Period, Shares, New Issues                   6,308,489                
Equity, Including Portion Attributable to Noncontrolling Interest                   $ 287,146 $ 223,848 $ 223,684     $ 221,361 $ 221,354 $ 221,277  
Former Chief Executive Officer and President [Member]                                    
Common Stock Shares Provided by Agreement                                   1,175,000
Former Chief Executive Officer and President [Member] | Common Stock [Member]                                    
Stock Issued During Period, Shares, New Issues               925,000                    
Stock Issued During Period, Shares, New Issues Placed in Escrow               250,000                    
Former Chief Executive Officer and President [Member] | Dr. Michael Goldberg [Member] | MT [Member] | Common Stock [Member]                                    
Ownership Percentage                                   5.00%
CRG [Member]                                    
Draws on Letter of Credit           $ 7,153,000                        
CRG Loan Agreement, Texas Case [Member]                                    
Litigation Settlement, Attorneys’ Fees       $ 2,800,000                            
Litigation Settlement, Amount Awarded to Other Party   $ 2,600,000                                
Post Judgement Interest Rate                   5.00%                
Loss Contingencies, Interest Rate                   5.00% 18.00%   5.00% 18.00%        
Interest Payable                   $ 771,000                
Loss Contingency Accrual                   $ 2,679,380                
CRG Loan Agreement, Texas Case [Member] | Judicial Ruling [Member]                                    
Loss Contingency, Damages Awarded, Value, Additional Amount             $ 7,000,000.0                      
Loss Contingency, Damages Awarded, Value, Amount not Taken into Consideration           $ 4,200,000     $ 4,100,000                  
New York Litigation Involving Former CEO and President [Member] | Judicial Ruling [Member]                                    
Litigation Settlement, Amount Awarded to Other Party $ 12,600                                  
Litigation Settlement, Amount Can Be Awarded to Other Party for Indemnification for Attorneys’ Fees         $ 14,955                          
Litigation Settlement, Amount Can Be Advanced to Other Party for Attorneys’ Fees Subject to Repayment         $ 1,237                          
Litigation Settlement, Advancement for Attorney's Fees and Disbursements     $ 143,172                              
CRG [Member] | Term Loan Agreement [Member] | CRG Loan Agreement, Texas Case [Member] | Judicial Ruling [Member]                                    
Repayments of Debt             59,000,000.0                      
CRG [Member] | Term Loan Agreement [Member] | Maximum [Member]                                    
Debt Instrument, Agreed-upon Final Payoff Amount             $ 66,000,000.0