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ACCOUNTS RECEIVABLE (Tables)
 12 Months Ended
Jun. 30, 2018
Receivables [Abstract]  
Change in the Allowance for Doubtful Accounts
Changes in the allowance for doubtful accounts, including amounts written off, provision charged to expense, and recoveries of previously written-off accounts, were as follows:
Fiscal Year Ended
June 30,
 
Balance,
beginning
of year
 
Net (decrease) increase
in allowance
 
Balance,
end of year
2018
 
$
55,872

 
(4,018
)
 
$
51,854

2017
 
$
55,175

 
697

 
$
55,872