Goodwill and Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets Subject to Amortization

Intangible assets balances, subject to amortization, at September 30, 2017 and 2016 consisted of the following (in thousands):

	September 30, 2017							September 30, 2016
	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Gross Carrying Value		Accumulated Amortization			Net Carrying Value
Purchased technology	$	11,749	$	(11,033	)	$	716	$	11,749	$	(10,693	)	$	1,056

Schedule of Estimated Amortization Expense

Estimated amortization expense for each of the five subsequent fiscal years is expected to be (in thousands):

Years Ended September 30,	Total
2018	$	204
2019	176
2020	176
2021	160
2022	—