Equity (Schedule of Earnings per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Numerator:
Income from continuing operations	$ 2,436	$ 1,178	$ 6,057	$ 882
(Loss) income from discontinued operations	(11)	123	(27)	5,388
Net income	$ 2,425	$ 1,301	$ 6,030	$ 6,270
Denominator:
Denominator for basic net income per share - weighted average shares outstanding (in shares)	26,833	26,103	26,577	25,913
Dilutive options outstanding, unvested stock units and ESPP (in shares)	983	166	971	273
Denominator for diluted net income per share - adjusted weighted average shares outstanding (in shares)	27,816	26,269	27,548	26,186
Net income (loss) per basic share:
Net income (loss) per basic share, continuing operations, (in usd per share)	$ 0.09	$ 0.05	$ 0.23	$ 0.04
Net income (loss) per basic share, discontinued operations (in usd per share)	0.00	0.00	0.00	0.20
Net income per basic share (in usd per share)	0.09	0.05	0.23	0.24
Net income (loss) per diluted share:
Net income (loss) per diluted share, continuing operations (in usd per share)	0.09	0.05	0.22	0.04
Net income (loss) per diluted share, discontinued operations (in usd per share)	0.00	0.00	0.00	0.20
Net income per diluted share (in usd per share)	$ 0.09	$ 0.05	$ 0.22	$ 0.24
Weighted average antidilutive options, unvested restricted stock units and awards, warrants and ESPP shares excluded from the computation (in shares)	370	522	400	528
Average market price of common stock (in dollars per share)	$ 10.00	$ 5.64	$ 8.66	$ 6.00