Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenue:
Hardware product revenue	$ 43,303	$ 42,330	$ 125,852	$ 128,484
Service revenue	4,582	6,494	15,237	15,528
Total revenue	47,885	48,824	141,089	144,012
Cost of sales:
Cost of hardware product	21,587	20,579	61,862	60,827
Cost of service	4,149	3,525	12,390	9,025
Total cost of sales	25,736	24,104	74,252	69,852
Gross profit	22,149	24,720	66,837	74,160
Operating expenses:
Sales and marketing	9,859	10,372	30,477	31,060
Research and development	7,253	7,606	21,921	22,798
General and administrative	5,317	4,850	14,659	16,356
Restructuring charges (reversal), net	0	0	81	(37)
Total operating expenses	22,429	22,828	67,138	70,177
Operating (loss) income	(280)	1,892	(301)	3,983
Other (loss) income, net:
Interest income	39	58	132	160
Interest expense	(4)	0	(5)	(37)
Other (loss) income, net	(69)	(59)	45	503
Total other (loss) income, net	(34)	(1)	172	626
(Loss) income before income taxes	(314)	1,891	(129)	4,609
Income tax (benefit) provision	(213)	363	(1,454)	851
Net (loss) income	$ (101)	$ 1,528	$ 1,325	$ 3,758
Net income per common share:
Basic (USD per share)	$ 0.00	$ 0.06	$ 0.05	$ 0.14
Diluted (USD per share)	$ 0.00	$ 0.06	$ 0.05	$ 0.14
Weighted average common shares:
Basic (shares)	25,274	25,849	25,545	26,057
Diluted (shares)	25,274	26,114	25,965	26,323