Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net revenue:
Revenue	$ 32,239,000	$ 36,026,000
Cost of revenue:
Cost of revenue	17,903,000	18,717,000
Gross profit	14,336,000	17,309,000
Operating expenses:
Sales and marketing	14,789,000	16,104,000
Research and development	3,870,000	3,706,000
General and administrative	7,806,000	5,525,000
Total operating expenses	26,465,000	25,335,000
Loss from operations	(12,129,000)	(8,026,000)
Interest and other expense, net	(207,000)	(79,000)
Loss before income taxes	(12,336,000)	(8,105,000)
Income tax expense	78,000	115,000
Net loss	$ (12,414,000)	$ (8,220,000)
Net loss per share:
Basic and Diluted (in dollars per share)	$ (0.86)	$ (0.59)
Weighted-average number of shares used in per share calculations:
Basic and Diluted (in shares)	14,433	14,017
Product [Member]
Net revenue:
Revenue	$ 26,391,000	$ 30,762,000
Cost of revenue:
Cost of revenue	14,103,000	15,541,000
Service [Member]
Net revenue:
Revenue	5,848,000	5,264,000
Cost of revenue:
Cost of revenue	$ 3,800,000	$ 3,176,000