Consolidated Statements of Cash Flows (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash Flows From Operating Activities:
Net loss	$ (2,985,770)	$ (4,597,240)
Depreciation and amortization	20,409	4,813
Share-based compensation, net	200,064	145,948
Fair value of common stock and warrants issued for services	22,800	173,000
Derivative warrant liability (gain) loss	(231,543)	3,029,897
Non-cash (gain) loss on extinguishment of debt		1,514
Non-cash interest expense		12,159
Accounts receivable	37,065	34,266
Prepaid expenses and other current assets	(43,416)	(20,156)
Deposits and other assets	9,749
Accounts payable	271,360	(112,591)
Deferred revenue	(30,927)	(121,455)
Accrued expenses and other liabilities	(289,118)	(106,012)
Net cash used in operating activities	(3,019,327)	1,555,857
Cash Flows from Investing Activities:
Purchase of property and equipment	(73,227)	(102,137)
Decrease in restricted cash		265,500
Net cash provided by (used in) investing activities	(73,227)	163,363
Cash Flows From Financing Activities:
Proceeds from the exercise of warrants		520,724
Proceeds from issuance of common stock and warrants, net of issuance costs	6,667	1,121,124
Principal payments for capital lease obligations	(551)	(499)
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	1,080
Net cash provided by financing activities	7,196	5,045,051
Net increase (decrease) in cash and cash equivalents	(3,085,358)	3,652,557
Cash and cash equivalents, beginning of period	8,995,571	1,342,044
Cash and cash equivalents, end of period	5,910,213	4,994,601
Supplemental Disclosure of Cash Flow Information and Non Cash Financing Transactions:
Cash paid for interest	150	592
Accretion of dividend on Series B Perpetual Redeemable Preferred Stock		45,684
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		1,254,273
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