Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue
Product and license	$ 156,057	$ 218,908	$ 182,556
Services and other	36,247	22,535	18,981
Total revenue	192,304	241,443	201,537
Cost of goods sold
Products	53,191	95,028	72,802
Services and other	8,456	2,875	3,093
Total cost of goods sold	61,647	97,903	75,895
Gross profit	130,657	143,540	125,642
Operating costs:
Sales and marketing	57,347	38,199	42,189
Research and development	23,214	17,457	18,546
General and administrative	31,648	32,489	22,287
Amortization of purchased intangible assets	8,849	4,942	4,532
Total operating costs	121,058	93,087	87,554
Operating income	9,599	50,453	38,088
Interest income, net	785	364	118
Other income, net	1,040	81	(286)
Income from continuing operations before income taxes	11,424	50,898	37,920
Provision for income taxes	863	8,704	5,309
Net income-continuing operations	10,561	42,194	32,611
Net income (loss) from discontinued operations	(47)	(43)	873
Net income	$ 10,514	$ 42,151	$ 33,484
Basic income (loss) per share:
Continuing operations	$ 0.27	$ 1.07	$ 0.83
Discontinued operations	0.00	0.00	0.02
Total net income per share	0.27	1.07	0.85
Diluted income (loss) per share:
Continuing operations	0.27	1.06	0.83
Discontinued operations	0.00	0.00	0.02
Total net income per share	$ 0.27	$ 1.06	$ 0.85
Weighted average common shares outstanding:
Basic	39,719	39,568	39,337
Diluted	39,782	39,736	39,499