Goodwill and Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2016

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets Subject to Amortization

Intangible assets balances, subject to amortization, at March 31, 2016 and September 30, 2015 consisted of the following (in thousands):

	March 31, 2016							September 30, 2015
	Gross					Net		Gross					Net
	Carrying		Accumulated			Carrying		Carrying		Accumulated			Carrying
	Value		Amortization			Value		Value		Amortization			Value
Purchased technology	$	11,749	$	(10,518	)	$	1,231	$	11,749	$	(10,359	)	$	1,390
Goodwill		1,003		—			1,003		1,003		—			1,003
Total	$	12,752	$	(10,518	)	$	2,234	$	12,752	$	(10,359	)	$	2,393