CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Revenue	$ 47,179	$ 44,611
Cost of revenue	11,101	8,426
Gross profit	36,078	36,185
Operating expenses
Sales and marketing	25,434	23,238
Research and development	6,917	5,738
General and administrative	9,562	8,692
Total operating expenses	41,913	37,668
Loss from operations	(5,835)	(1,483)
Other income and (expense):
Interest income	16	33
Interest expense	(53)	(60)
Other income and (expense)	71	796
Total other income and (expense)	34	769
Loss before income taxes	(5,801)	(714)
Income tax expense (benefit)	380	(170)
Net loss	$ (6,181)	$ (544)
Loss per share:
Basic	$ (0.26)	$ (0.02)
Diluted	$ (0.26)	$ (0.02)
Common shares and equivalents outstanding:
Basic weighted average shares	23,803	23,036
Diluted weighted average shares	23,803	23,036