Condensed Statements of Cash Flows (USD $)	9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012
Cash flows from operating activities:
Net loss	$ (21,337,798)		$ (16,594,090)
Adjustments to reconcile net loss to net cash used in operating activities:
Write-off of unamortized loan costs	983,330
Depreciation and amortization	1,790,037		583,058
Impairment of long-lived assets	1,010,712
Allowance for uncollectible accounts	52,097
Inventory reserve	325,000
Non-cash interest expense	163,569
Change in fair value of warrant liability	89,859
Write-off of unamortized financing costs	41,166		62,391
Issuance of shares to non-employees for services rendered	99,283
Non-cash equity compensation	1,157,471		1,106,296
Changes in operating assets and liabilities:
Decrease (increase) in accounts receivable	76,944		(100,578)
Decrease (increase) in inventory	79,014		(566,287)
Decrease in prepaid expenses and other current assets	300,528		351,782
Decrease (increase) in other assets	4,000		(7,501)
(Decrease) increase in accounts payable and accrued expenses	(503,345)		773,946
(Decrease) increase in deferred rent	(17,739)		4,167
Increase in deferred revenue	69,364		150,876
Increase in long-term interest payable	86,042
Increase in other current liabilities	17,017		50,904
Net cash used in operating activities	(15,513,449)		(14,185,036)
Cash flows from investing activities:
Purchases of property and equipment	(4,865,358)		(3,668,410)
Net cash used in investing activities	(4,865,358)		(3,668,410)
Cash flows from financing activities:
Proceeds from borrowings and issuance of warrant	6,000,000
Expenses related to borrowings and issuance of warrant	(245,358)
Repayment of long-term debt	(6,425,000)
Proceeds from exercise of stock options	18,059		38,585
Net proceeds from public offerings	15,789,873		3,093,839
Net cash provided by financing activities	15,137,574		3,132,424
Net increase (decrease) in cash and cash equivalents	(5,241,233)		(14,721,022)
Cash and cash equivalents at beginning of period	7,861,524	[1]	27,996,871
Cash and cash equivalents at end of period	2,620,291		13,275,849
Non-cash investing and financing activity:
Reclassification of warrant liability to stockholders' equity	652,442
Reclassification of MelaFind® components from other assets to property and equipment			$ 522,014

[1] Derived from the audited balance sheet as of December 31, 2012