Consolidated Statements of Cash Flows (USD $)	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash Flows From Operating Activities:
Net loss	$ (6,140,114)	$ (6,536,955)
Depreciation and amortization	43,757	14,200
Share-based compensation, net	436,056	286,508
Fair value of common stock and warrants issued for services	50,299	380,763
Derivative warrant liability (gain) loss	(601,281)	3,151,908
Non-cash (gain) loss on extinguishment of debt		1,514
Non-cash interest expense		12,159
Non-cash loss on disposal of assets	21,272	2,731
Accounts receivable	33,513	104,423
Stock subscriptions receivable		285,000
Prepaid expenses and other current assets	55,799	(83,602)
Deposits and other assets	9,749	(10,566)
Accounts payable	318,374	(175,345)
Deferred revenue	(61,854)	(242,910)
Accrued expenses and other liabilities	67,147	207,238
Net cash used in operating activities	(5,767,283)	(2,602,934)
Cash Flows from Investing Activities:
Purchase of property and equipment	(310,895)	(249,127)
Increase in restricted cash	(157,463)	(128,250)
Net cash provided by (used in) investing activities	(468,358)	(377,377)
Cash Flows From Financing Activities:
Proceeds from the exercise of warrants	151,680	576,224
Proceeds from issuance of common stock and warrants, net of issuance costs	6,667	794,761
Principal payments for capital lease obligations	(1,115)	(1,009)
Proceeds from issuance of Series D Convertible Preferred Stock and warrants, net of issuance costs		2,478,702
Proceeds from bridge notes		1,000,000
Repayment of bridge notes		(75,000)
Proceeds from exercise of stock options	194,180	64,250
Net cash provided by financing activities	351,412	4,837,928
Net increase (decrease) in cash and cash equivalents	(5,884,229)	1,857,617
Cash and cash equivalents, beginning of period	8,995,571	1,342,044
Cash and cash equivalents, end of period	3,111,342	3,199,661
Supplemental Disclosure of Cash Flow Information and Non Cash Financing Transactions:
Cash paid for interest	284	1,196
Accretion of dividend on Series B Perpetual Redeemable Preferred Stock		93,242
Deemed dividend on beneficial conversion of Series D Convertible Preferred Stock		1,975,211
Issuance of common stock in settlement of short term note		25,000
Conversion of notes payable and accrued interest into Series D Convertible Preferred Stock		1,006,000
Reclassification of derivative warrant liability to additional paid-in capital	41,520	2,170,727
Fair value of warrants issued to investor relations services		173,000
Fair value of common stock issued for short-term note extension		10,500
Fair value of warrants issued to financial advisors as financing costs		41,363
Fair value of common stock issued in connection with settlement agreement	208,000
Cancellation of restricted common stock		$ 5,250