Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Numerator:
Income continuing operations	$ 3,131	$ 1,018
Income (loss) from discontinued operations, after income taxes	3,319	(1,357)
Net income (loss)	$ 6,450	$ (339)
Denominator:
Denominator for basic net income (loss) per common share — weighted average shares outstanding	25,331,000	24,150,000
Effect of dilutive securities:
Stock options and restricted stock units	840,000	312,000
Denominator for diluted net income (loss) per common share — adjusted weighted average shares	26,171,000	24,462,000
Basic net income (loss) per common share:
Continuing operations, basic (USD per share)	$ 0.12	$ 0.04
Discontinued operations, basic (USD per share)	0.13	(0.06)
Net income (loss), basic (USD per share)	0.25	(0.01)
Diluted net income (loss) per common share
Continuing operations, diluted (USD per share)	0.12	0.04
Discontinued operations, diluted (USD per share)	0.13	(0.06)
Net income (loss), diluted (USD per share)	$ 0.25	$ (0.01)
Potentially dilutive securities excluded from computation of earnings per share	902,084	5,676,561