Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenue:
Hardware product		$ 50,547	$ 50,001	$ 147,526	$ 143,042
Service		1,583	2,054	5,025	6,632
Total revenue		52,130	52,055	152,551	149,674
Cost of sales:
Cost of hardware product		24,988	25,729	73,981	74,339
Cost of service		1,165	1,302	3,494	4,519
Total cost of sales		26,153	27,031	77,475	78,858
Gross profit		25,977	25,024	75,076	70,816
Operating expenses:
Sales and marketing		8,627	8,982	25,310	29,092
Research and development		7,948	7,785	23,543	22,148
General and administrative		4,283	4,474	13,409	13,598
Restructuring (reversal) charge, net		(6)	(9)	747	403
Total operating expenses		20,852	21,232	63,009	65,241
Operating income		5,125	3,792	12,067	5,575
Other (expense) income, net:
Interest income		143	46	381	138
Interest expense		(100)	(4)	(226)	(4)
Other (expense) income, net		(359)	419	(520)	2,131
Total other (expense) income, net		(316)	461	(365)	2,265
Income from continuing operations, before income taxes		4,809	4,253	11,702	7,840
Income tax provision		532	1,168	2,068	2,075
Income continuing operations		4,277	3,085	9,634	5,765
Income (loss) from discontinued operations, after income taxes		0	(589)	3,230	(2,162)
Net income		$ 4,277	$ 2,496	$ 12,864	$ 3,603
Basic net income (loss) per common share:
Continuing operations, basic (USD per share)		$ 0.17	$ 0.12	$ 0.38	$ 0.24
Discontinued operations, basic (USD per share)		0.00	(0.02)	0.13	(0.09)
Net income, basic (1) (USD per share)	[1],[2]	0.17	0.10	0.50	0.15
Diluted net income (loss) per common share
Continuing operations, diluted (USD per share)		0.16	0.12	0.37	0.23
Discontinued operations, diluted (USD per share)		0.00	(0.02)	0.12	(0.09)
Net income, diluted (USD per share)		$ 0.16	$ 0.10	$ 0.49	$ 0.14
Weighted average common shares:
Basic (shares)		25,904	24,938	25,684	24,525
Diluted (shares)		26,300	25,710	26,156	25,085

[1] Earnings per share presented are calculated by line item and may not add due to the use of rounded amounts.

[2] Earnings per share presented are calculated by line item and may not add due to the use of rounded amounts.