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RETIREMENT PLANS (Details Textual) - USD ($)
3 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Pension And Other Postretirement Benefit, Vested Percentage Of Eligible Employees 100.00%  
Pension and Other Postretirement Benefits Cost (Reversal of Cost) $ 49,589 $ 51,753
Defined Contribution Plan, Employer Matching Contribution, Percent of Match 4.00%