Consolidated Balance Sheets (USD $)	Dec. 31, 2012	Dec. 31, 2011
Current assets
Cash and cash equivalents	$ 4,498,237	$ 4,911,350
Trade accounts receivable, net of allowance of $0 and $8,174
Other receivables	3,425	293
Prepaid research expenses		209,780
Prepaid expenses and other assets	100,474	116,565
Assets of segment held for sale	104,265	289,927
Total current assets	4,706,401	5,527,915
Property and equipment, net of accumulated depreciation of $308,386 and $244,711	24,009	85,374
Patents, net of accumulated amortization of $0 and $2,146
Deposit	25,625	35,625
Assets of segment held for sale, non-current		6,108
Total assets	4,756,035	5,655,022
Current liabilities
Accounts payable and accrued expenses	425,774	269,996
Accrued salaries and benefits	280,263	242,550
Liabilities of segment held for sale	25,040	380,136
Total current liabilities	731,077	892,682
Deferred rent	45,081	47,675
Warrant liability	3,125,393	916,621
Total liabilities	3,901,551	1,856,978
Stockholders' equity
Preferred stock, $0.0001 par value, 5,000,000 shares authorized; 5,250 series B issued and 1 outstanding at December 31, 2012, and December 31, 2011
Common stock, $0.0001 par value, 50,000,000 shares authorized; 814,114 and 155,150 issued, 813,713 and 154,749 outstanding at December 31, 2012 and 2011, respectively	82	16
Paid-in capital in excess of par value	36,630,406	35,717,008
Treasury stock, 401 shares	(464,786)	(464,786)
Accumulated deficit	(35,311,218)	(31,454,194)
Total stockholders' equity	854,484	3,798,044
Total liabilities and stockholders' equity	$ 4,756,035	$ 5,655,022