Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Revenue:
Hardware product		$ 41,766	$ 48,732	$ 84,939	$ 96,979
Service		3,849	1,430	5,851	3,442
Total revenue		45,615	50,162	90,790	100,421
Cost of sales:
Cost of hardware product		21,489	24,283	43,927	48,993
Cost of service		2,224	1,137	3,508	2,329
Total cost of sales		23,713	25,420	47,435	51,322
Gross profit		21,902	24,742	43,355	49,099
Operating expenses:
Sales and marketing		8,731	8,165	17,053	16,683
Research and development		6,979	7,757	13,884	15,595
General and administrative		4,680	5,065	8,484	9,126
Restructuring charge		0	102	0	753
Total operating expenses		20,390	21,089	39,421	42,157
Operating income		1,512	3,653	3,934	6,942
Other (expense) income, net:
Interest income		120	130	279	238
Interest expense		(10)	(118)	(43)	(126)
Other (expense) income, net		(143)	(284)	431	(161)
Total other (expense) income, net		(33)	(272)	667	(49)
Income from continuing operations, before income taxes		1,479	3,381	4,601	6,893
Income tax provision		148	1,155	913	1,536
Income continuing operations		1,331	2,226	3,688	5,357
(Loss) income from discontinued operations, after income taxes		0	(89)	0	3,230
Net income		$ 1,331	$ 2,137	$ 3,688	$ 8,587
Basic net income per common share:
Continuing operations, basic (USD per share)		$ 0.05	$ 0.09	$ 0.14	$ 0.21
Discontinued operations, basic (USD per share)		0.00	0.00	0.00	0.13
Net income, basic (USD per share)	[1],[2]	0.05	0.08	0.14	0.34
Diluted net income per common share
Continuing operations, diluted (USD per share)		0.05	0.09	0.14	0.21
Discontinued operations, diluted (USD per share)		0.00	0.00	0.00	0.12
Net income, diluted (USD per share)	[1],[2]	$ 0.05	$ 0.08	$ 0.14	$ 0.33
Weighted average common shares:
Basic (shares)		26,477	25,820	26,324	25,574
Diluted (shares)		27,252	25,998	27,134	26,116

[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.