Equity (Schedule of Earnings per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Numerator
Income (loss) from continuing operations	$ 464	$ (4,349)	$ (3,622)	$ (12,894)
Income from discontinued operations	1,976	1,199	65,242	2,258
Net income (loss)	$ 2,440	$ (3,150)	$ 61,620	$ (10,636)
Denominator:
Denominator for basic net income (loss) per share - weighted average shares outstanding (shares)	31,203	30,656	31,494	30,327
Dilutive options outstanding, unvested stock units and ESPP	229	0	0	0
Denominator for diluted net income (loss) per share - adjusted weighted average shares outstanding	31,432	30,656	31,494	30,327
Net income (loss) per basic share:
Net income (loss) per basic shares, continuing operations (USD per share)	$ 0.02	$ (0.14)	$ (0.11)	$ (0.42)
Net income (loss) per basic shares, discontinued operations (USD per share)	0.06	0.04	2.07	0.07
Net income (loss) per basic share (USD per share)	0.08	(0.10)	1.96	(0.35)
Net income (loss) per diluted share:
Net income (loss) per diluted share, continuing operations (USD per share)	0.02	(0.14)	(0.11)	(0.42)
Net income (loss) per diluted share, discontinued operations (USD per share)	0.06	0.04	2.07	0.07
Net income (loss) per diluted share (USD per share)	$ 0.08	$ (0.10)	$ 1.96	$ (0.35)
Weighted average antidilutive options, unvested restricted stock units and awards, warrants and ESPP shares excluded from the computation	749	3,091	1,378	2,990
Average market price of common stock (in dollars per share)	$ 5.99	$ 4.39	$ 5.54	$ 4.80