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Income Taxes (Details Narrative) - USD ($)
 12 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2021
Cash saving due to utilization of payroll tax deferral     $ 325,000
Change in statutory income tax rate 20.00%    
Future taxable income $ 39,000,000    
Valuation adjustment against deferred tax asset 12,100,000    
Deferred tax asset 123,000    
Change in valuation allowance against deferred tax asset   $ 1,000,000.0  
Future taxable income expired 21,000,000    
Future taxable income not expired $ 18,000,000    
Statutory income tax rate 25.00%    
Dividend paid $ 1,400,000 1,900,000  
Chinese withholding tax paid 152,000 210,000  
Unpaid withholding tax 40,000 40,000  
Income tax expense $ 152,000 $ 210,000  
Statutory income tax rate 21.00% 21.00%  
Research [Member]      
Credit carry forwards $ 1,500,000    
Tax credit carryforward, description expire from 2025 through 2044    
LATVIA      
Statutory income tax rate 25.00% 15.00%  
LPOIZ | CN [Member]      
Net deferred tax liability $ 415,000 $ 465,000  
Statutory income tax rate of China 15.00%