CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues:
Product revenues	$ 8,550,551	$ 10,176,275	$ 27,049,072	$ 33,045,050
Support and services revenues	8,538,462	8,680,115	25,874,214	24,398,610
Total revenues	17,089,013	18,856,390	52,923,286	57,443,660
Cost of revenues: Product	1,562,359	1,467,141	5,370,031	5,456,186
Support and service	3,318,558	3,339,448	9,570,969	9,877,256
Total cost of revenues	4,880,917	4,806,589	14,941,000	15,333,442
Gross profit	12,208,096	14,049,801	37,982,286	42,110,218
Operating expenses
Research and development costs	4,643,102	5,033,211	14,115,388	16,383,318
Selling and marketing	8,272,973	9,878,069	27,302,960	28,873,468
General and administrative	3,461,880	2,904,767	9,590,909	8,463,762
Investigation, litigation, and settlement related costs	(1,353,571)	531,507	(1,793,368)	4,331,298
Restructuring costs	770,749	822,320	770,749	822,320
Total operating expenses	15,795,133	19,169,874	49,986,638	58,874,166
Operating loss	(3,587,037)	(5,120,073)	(12,004,352)	(16,763,948)
Interest and other income (loss), net	102,059	(71,266)	(142,805)	379,690
Loss before income taxes	(3,484,978)	(5,191,339)	(12,147,157)	(16,384,258)
Provision for income taxes	83,073	206,837	490,888	869,221
Net loss	$ (3,568,051)	$ (5,398,176)	$ (12,638,045)	$ (17,253,479)
Basic net loss per share	$ (0.08)	$ (0.12)	$ (0.27)	$ (0.37)
Diluted net loss per share	$ (0.08)	$ (0.12)	$ (0.27)	$ (0.37)
Weighted average basic shares outstanding	47,542,304	46,779,040	47,353,922	46,563,004
Weighted average diluted shares outstanding	47,542,304	46,779,040	47,353,922	46,563,004