Concentrations of Credit Risk

12 Months Ended

Jun. 30, 2015

Concentrations of Credit Risk [Abstract]

Concentrations of Credit Risk

9.   Concentrations
      of Credit Risk Financial instruments which potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents, accounts and trade receivables and leases and mortgages receivable. The Company maintains its cash and cash equivalents, including a money market account, at a large bank. At June 30, 2015, bank deposits exceeded Federal Deposit Insurance Corporation limits by approximately $3,400,000. Concentrations of credit risk with respect to trade receivables are limited due to a large customer base.  Also, based on the Company's credit evaluation, trade receivables are often collateralized by the equipment sold. No customers provided more than 10% of fiscal 2015 revenues.