Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Revenue:
Hardware product		$ 48,732	$ 48,108	$ 96,979	$ 93,041
Service		1,430	2,293	3,442	4,578
Total revenue		50,162	50,401	100,421	97,619
Cost of sales:
Cost of hardware product		24,283	25,498	48,993	48,610
Cost of service		1,137	1,668	2,329	3,217
Total cost of sales		25,420	27,166	51,322	51,827
Gross profit		24,742	23,235	49,099	45,792
Operating expenses:
Sales and marketing		8,165	9,875	16,683	20,110
Research and development		7,757	7,280	15,595	14,363
General and administrative		5,065	4,349	9,126	9,124
Restructuring charge		102	412	753	412
Total operating expenses		21,089	21,916	42,157	44,009
Operating income		3,653	1,319	6,942	1,783
Other (expense) income, net:
Interest income, net		12	54	112	92
Other (expense) income, net		(284)	1,324	(161)	1,712
Total other (expense) income, net		(272)	1,378	(49)	1,804
Income from continuing operations, before income taxes		3,381	2,697	6,893	3,587
Income tax provision		1,155	1,035	1,536	907
Income continuing operations		2,226	1,662	5,357	2,680
(Loss) income from discontinued operations, after income taxes		(89)	(216)	3,230	(1,573)
Net income		$ 2,137	$ 1,446	$ 8,587	$ 1,107
Basic net income (loss) per common share:
Continuing operations, basic (USD per share)		$ 0.09	$ 0.07	$ 0.21	$ 0.11
Discontinued operations, basic (USD per share)		0.00	(0.01)	0.13	(0.06)
Total, basic (1) (USD per share)	[1],[2]	0.08	0.06	0.34	0.05
Diluted net income (loss) per common share
Continuing operations, diluted (USD per share)		0.09	0.07	0.21	0.11
Discontinued operations, diluted (USD per share)		0.00	(0.01)	0.12	(0.06)
Total, diluted (1) (USD per share)	[1],[2]	$ 0.08	$ 0.06	$ 0.33	$ 0.04
Weighted average common shares:
Basic (shares)		25,820	24,492	25,574	24,319
Diluted (shares)		25,998	25,273	26,116	24,816

[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.