Statements Of Operations (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenue:
Systems	$ 4,449,598	$ 5,040,025	$ 10,000,926	$ 14,082,637
Disposables, service and accessories	6,371,846	6,521,374	18,962,129	20,274,888
Total revenue	10,821,444	11,561,399	28,963,055	34,357,525
Cost of revenue:
Systems	2,338,175	2,429,764	5,132,007	6,948,145
Disposables, service and accessories	1,161,449	1,057,057	3,032,150	3,560,585
Total cost of revenue	3,499,624	3,486,821	8,164,157	10,508,730
Gross margin	7,321,820	8,074,578	20,798,898	23,848,795
Operating expenses:
Research and development	1,300,287	1,904,648	4,313,590	6,925,928
Sales and marketing	4,102,968	4,096,842	13,213,528	16,318,911
General and administrative	2,987,408	3,007,598	9,688,116	10,349,817
Total operating expenses	8,390,663	9,009,088	27,215,234	33,594,656
Operating loss	(1,068,843)	(934,510)	(6,416,336)	(9,745,861)
Other income (expense)	(48,160,084)	598,494	(46,660,340)	9,679,848
Interest income	1,306	1,982	3,973	5,353
Interest expense	(7,640,821)	(1,581,247)	(11,722,679)	(4,861,106)
Net income (loss)	$ (56,868,442)	$ (1,915,281)	$ (64,795,382)	$ (4,921,766)
Net loss per common share:
Basic	$ (4.49)	$ (0.25)	$ (6.72)	$ (0.74)
Diluted	$ (4.49)	$ (0.25)	$ (6.72)	$ (0.74)
Weighted average shares used in computing net loss per common share:
Basic	12,666,414	7,701,332	9,640,249	6,651,255
Diluted	12,666,414	7,701,332	9,640,249	6,651,255