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ALLOWANCE FOR DOUBTFUL ACCOUNTS (Tables)
 12 Months Ended
Sep. 30, 2015
Receivables [Abstract]  
Allowance for Credit Losses on Financing Receivables
A summary of activity in the allowance for doubtful accounts during the years ended September 30, 2015 and 2014 follows:
 
 
 
Years Ended
Allowance for Doubtful Accounts
 
September 30,
2015
 
September 30,
2014
(in thousands)
 
 
 
 
Allowance, beginning of period
 
$
525

 
$
452

Provision for doubtful accounts
 
(38
)
 
121

Write-offs
 
(64
)
 
(48
)
Allowance, end of period
 
$
423

 
$
525