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I. Contingent Payments (Tables)
3 Months Ended
Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]  
Contingent payments
    September 30,    June 30,
    2016   2016
Contingent land payment $                   677,400 $              672,700
         Less current portion                               -                             -   
Contingent payments, long-term $                   677,400  $               672,700