CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue:
Product revenue	$ 2,129,125	$ 2,245,544	$ 6,549,832	$ 7,465,996
Support and services revenue	3,976,308	5,081,266	12,329,042	15,361,096
Total revenue	6,105,433	7,326,810	18,878,874	22,827,092
Cost of revenue:
Product	118,880	145,986	669,564	710,233
Support and service	1,115,703	1,914,383	3,788,282	5,675,728
Total cost of revenue	1,234,583	2,060,369	4,457,846	6,385,961
Gross profit	4,870,850	5,266,441	14,421,028	16,441,131
Operating expenses:
Research and development costs	1,216,663	2,514,822	5,536,658	9,475,678
Selling and marketing	1,128,850	2,991,901	5,288,991	11,385,051
General and administrative	1,163,676	1,561,335	4,130,570	5,100,739
Restructuring	76,705	0	(159,597)	177,389
Total operating expenses	3,585,894	7,068,058	14,796,622	26,138,857
Operating income (loss)	1,284,956	(1,801,617)	(375,594)	(9,697,726)
Interest and other (loss) income, net	134,321	(90,037)	260,121	265,397
Income (Loss) before income taxes	1,419,277	(1,891,654)	(115,473)	(9,432,329)
Provision for (benefit from) income taxes	(9,896)	84,519	207,352	375,338
Net income (loss)	1,429,173	(1,976,173)	(322,825)	(9,807,667)
Less: Accrual of Series A redeemable convertible preferred stock dividends	215,000	194,012	634,664	581,986
Less: Accretion to redemption value of Series A redeemable convertible preferred stock	0	178,619	0	513,269
Net income (loss) attributable to common stockholders	$ 1,214,173	$ (2,348,804)	$ (957,489)	$ (10,902,922)
Basic net loss per share attributable to common stockholders (in dollars per share)	$ 0.03	$ (0.05)	$ (0.02)	$ (0.25)
Diluted net loss per share attributable to common stockholders (in dollars per share)	$ 0.02	$ (0.05)	$ (0.02)	$ (0.25)
Weighted average basic shares outstanding (in shares)	44,552,892	43,488,448	44,362,367	42,847,038
Weighted average diluted shares outstanding (in shares)	54,235,876	43,488,448	44,362,367	42,847,038