CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenue:
Product revenue	$ 3,650,504	$ 4,252,486	$ 17,620,871	$ 9,215,545
Support and services revenue	5,902,085	7,050,181	11,871,594	14,088,621
Total revenue	9,552,589	11,302,667	29,492,465	23,304,166
Cost of revenue:
Product	718,057	698,222	1,108,281	1,273,346
Support and service	1,940,729	2,009,441	3,960,747	4,108,692
Total cost of revenue	2,658,786	2,707,663	5,069,028	5,382,038
Gross profit	6,893,803	8,595,004	24,423,437	17,922,128
Operating expenses:
Research and development costs	3,067,732	3,143,224	6,273,599	6,492,019
Selling and marketing	4,371,513	6,351,947	9,676,875	12,240,413
General and administrative	2,583,893	2,364,380	5,076,834	4,755,790
Investigation, litigation, and settlement related (benefits) costs	(8,186)	(5,275,920)	8,842	(5,164,209)
Restructuring costs	23,495	562,913	157,971	786,486
Total operating expenses	10,038,447	7,146,544	21,194,121	19,110,499
Operating (loss) income	(3,144,644)	1,448,460	3,229,316	(1,188,371)
Interest and other income (loss), net	98,411	(30,982)	(365,665)	19,126
(Loss) income before income taxes	(3,046,233)	1,417,478	2,863,651	(1,169,245)
(Benefit) provision for income taxes	(378,049)	86,531	269,456	301,606
Net (loss) income	(2,668,184)	1,330,947	2,594,195	(1,470,851)
Less: Accrual of Series A redeemable convertible preferred stock dividends	186,904	186,904	377,690	373,808
Less: Accretion to redemption value of Series A redeemable convertible preferred stock	143,557	120,531	280,974	235,907
Net (loss) income attributable to common stockholders	$ (2,998,645)	$ 1,023,512	$ 1,935,531	$ (2,080,566)
Basic net (loss) income per share attributable to common stockholders (in dollars per share)	$ (0.07)	$ 0.02	$ 0.05	$ (0.04)
Diluted net (loss) income per share attributable to common stockholders (in dollars per share)	$ (0.07)	$ 0.02	$ 0.05	$ (0.04)
Weighted average basic shares outstanding (in shares)	40,964,160	47,919,318	40,949,849	47,975,217
Weighted average diluted shares outstanding (in shares)	40,964,160	48,780,606	42,492,677	47,975,217