Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Shareholders' Equity (Details Textual)

v3.23.2
Note 10 - Shareholders' Equity (Details Textual) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 21, 2023
Apr. 10, 2023
Jun. 30, 2023
Jun. 30, 2023
Jun. 30, 2022
Stock Issued During Period, Value, New Issues     $ 36,852,000    
Proceeds from Issuance of Private Placement $ 36,100,000     $ 36,900,000  
Registration Rights Agreement, Liquidated Damages, Maximum Percentage of Invested Capital 10.00%        
Stock Issued During Period, Shares Settlement of Deferred Stock Units       17,621  
Stock Issued During Period, Shares, Restricted Stock Units (in shares)       8,578  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period         0
Private Placement [Member]          
Stock Issued During Period, Shares, New Issues 11,011,406        
Stock Issued During Period, Value, New Issues $ 37,500,000        
Shares Issued, Price Per Share $ 3.40        
Chief Business Officer [Member]          
Stock Issued During Period, Shares, New Issues   468,750      
Stock Issued During Period, Value, New Issues   $ 750,000      
Shares Issued, Price Per Share   $ 1.60      
Directors and Officers [Member] | Private Placement [Member]          
Shares Issued, Price Per Share $ 3.91