Accounts Receivable

12 Months Ended

Sep. 30, 2016

Receivables [Abstract]

Accounts Receivable

Accounts Receivable

The components of accounts receivable consisted of the following:

	As of			As of
(in thousands)	September 30, 2016			September 30, 2015
Accounts receivable, gross	$	18,468		$	17,781
Allowance for doubtful accounts	(36		)	(462		)
Accounts receivable, net	$	18,432		$	17,319

The allowance for doubtful accounts is based on the age of receivables and a specific identification of receivables considered at risk of collection.

The following table summarizes changes in the allowance for doubtful accounts for the fiscal years ended September 30, 2016, 2015 and 2014.

Allowance for Doubtful Accounts (in thousands)	For the Fiscal Years Ended September 30,
	2016			2015			2014
Balance at beginning of period	$	462		$	116		$	22
Provision adjustment - expense, net of recoveries	23			556			54
Write-offs and other adjustments - additions (deductions) to receivable balances	(449		)	(210		)	40
Balance at end of period	$	36		$	462		$	116