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Note 19 - Stock Options - Summary of Options Activities 2017 Directors Plan (Details) - USD ($)
3 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Exercisable, aggregate intrinsic value   $ 3    
Director Plan 2017 [Member]        
Outstanding. options (in shares) 420,000 320,000 420,000 320,000
Outstanding, weighted average exercise price (in dollars per share) $ 5.10 $ 4.27 $ 5.10 $ 4.27
Outstanding, weighted average remaining contractual term (Year) 2 years 6 months 25 days 2 years 11 months 19 days 2 years 10 months 6 days 3 years 2 months 19 days
Aggregate intrinsic value outstanding $ 278 $ 210 $ 228 $ 340
Exercisable, options (in shares) 420,000 320,000    
Exercisable, weighted average exercise price (in dollars per share) $ 5.10 $ 4.27    
Exercisable, weighted average remaining contractual term (Year) 2 years 6 months 25 days 2 years 11 months 19 days    
Exercisable, aggregate intrinsic value $ 278 $ 210