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Note 19 - Stock Options - Summary of Options Activities 2007 Employee Plan (Details) - USD ($)
3 Months Ended 12 Months Ended
Sep. 30, 2021
Jun. 30, 2021
Sep. 30, 2022
Jun. 30, 2022
Exercisable, aggregate intrinsic value $ 3      
Employee Stock Option Plan 2007 [Member]        
Outstanding. options (in shares) 37,500 37,500 0 0
Outstanding, weighted average exercise price (in dollars per share) $ 4.14 $ 4.14    
Outstanding, weighted average remaining contractual term (Year) 5 months 26 days 9 months    
Aggregate intrinsic value outstanding $ 3 $ 34    
Exercisable, options (in shares) 37,500      
Exercisable, weighted average exercise price (in dollars per share) $ 4.14      
Exercisable, weighted average remaining contractual term (Year) 5 months 26 days