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Interim Financial Reporting (Details Narrative) - USD ($)
3 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Jun. 30, 2017
Common stock equivalents excluded from calculation of diluted earnings per share 177,500 196,500  
Accounts receivable, allowance for doubtful accounts $ 45,000   $ 45,000
International [Member]      
Sales $ 101,000 $ 67,000