Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenue:
Subscription and support	$ 15,241	$ 14,322
Perpetual license	318	811
Total product revenue	15,559	15,133
Professional services	2,023	2,395
Total revenue	17,582	17,528
Cost of revenue:
Subscription and support	5,226	4,732
Professional services	1,624	1,908
Total cost of revenue	6,850	6,640
Gross profit	10,732	10,888
Operating expenses:
Sales and marketing	3,069	3,532
Research and development	3,910	3,926
Refundable Canadian tax credits	(109)	(121)
General and administrative	4,123	5,119
Depreciation and amortization	1,472	1,014
Acquisition-related expenses	2,428	545
Total operating expenses	14,893	14,015
Loss from operations	(4,161)	(3,127)
Interest expense, net	(561)	(347)
Other expense, net	(748)	(512)
Total other expense	(1,309)	(859)
Loss before provision for income taxes	(5,470)	(3,986)
(Provision for) benefit from income taxes	(103)	243
Net loss	$ (5,573)	$ (3,743)
Net loss per common share:
Net loss per common share, basic and diluted (in USD per share)	$ (0.36)	$ (0.25)
Weighted-average common shares outstanding, basic and diluted	15,432,405	14,841,316