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
Earnings Per Share [Abstract]
Document Fiscal Year Focus			2017
Numerator [Abstract]
Net income	$ 945	$ 776	$ 2,248	$ 997
Denominator [Abstract]
Denominator for basic net income (loss) per share - weighted-average outstanding shares (shares)	11,299	10,154	11,250	9,812
Effect of dilutive securities:
Stock options and restricted stock (shares)	1,146	1,157	1,167	1,043
Denominator for diluted net income (loss) per share - weighted-average outstanding shares (shares)	12,445	11,311	12,417	10,855
Net income (loss) per share - basic (dollars per share)	$ 0.08	$ 0.08	$ 0.20	$ 0.10
Net income (loss) per share - diluted (in dollars per share)	$ 0.08	$ 0.07	$ 0.18	$ 0.09