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Note 12 - Commitment and Contingenc (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 85 Months Ended
Aug. 31, 2014
Sep. 30, 2017
Aug. 31, 2021
Dec. 31, 2022
Chief Executive Officer [Member]        
Salary and Wage, Officer, Excluding Cost of Good and Service Sold     $ 202,000  
Percentage of Quarterly Bonus. 5.00%      
Percentage of Annual Bonus 9.00%      
Rate Of Annual Pre Bonus Net After Tax Earnings Minimum $ 300,000      
Rate Of Annual Pre Bonus Net After Tax Earnings Maximum $ 3,000,000      
Percentage Of Adjusted Annual Bonus 3.00%      
Annual Prebonus Adjusted Net After Tax Earnings Maximum $ 3,000,000      
Maximum Quarterly Bonus   $ 12,500    
Other Commitment, to be Paid, Year One       $ 119,000
Minimum [Member]        
Lessee, Operating Lease, Remaining Lease Term (Year)       1 year
Maximum [Member]        
Lessee, Operating Lease, Remaining Lease Term (Year)       4 years