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Income Taxes (Details Textual) - USD ($)
 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Income Tax Expense (Benefit) $ 39,779 $ 35,495
Current State and Local Tax Expense (Benefit) 2,629 5,943
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount 1,564,692  
Current Foreign Tax Expense (Benefit) 37,150 29,552
Domestic Tax Authority [Member]    
Operating Loss Carryforwards 11,010,000 11,619,000
State and Local Jurisdiction [Member]    
Operating Loss Carryforwards $ 6,990,000 $ 7,254,000
Tax Credit Carryforward, Expiration Date Dec. 31, 2038  
Federal [Member]    
Tax Credit Carryforward, Expiration Date Dec. 31, 2033