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Income Taxes Textuals (Details 5) - USD ($)
 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Other Tax Expense (Benefit)   $ 1,000,000  
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00% 21.00% 21.00%
Deferred Tax Assets, Operating Loss Carryforwards, Foreign $ 35,415,000 $ 29,584,000  
Operating Loss Carryforwards 8,445,000 7,929,000  
Deferred Tax Assets, Operating Loss Carryforwards, State and Local 1,034,000 1,177,000  
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount 267,000 2,124,000  
Deferred Tax Assets, Valuation Allowance 8,542,000 7,494,000  
Undistributed Earnings Of Foreign Subsidiaries On Which No Provision Has Been Made For Income Taxes 121,463,000    
Income Tax Examination, Penalties and Interest Expense 144,000 256,000 $ 161,000
Income Tax Examination, Penalties and Interest Accrued 1,238,000 1,094,000 838,000
Unrecognized income tax benefits that would affect the effective income tax rate 4,986,000 4,708,000 $ 4,701,000
CANADA      
Deferred Tax Assets, Valuation Allowance $ 8,498,000 $ 7,450,000