Consolidated Balance Sheets (USD $)	Mar. 31, 2013	Dec. 31, 2012
Current assets
Cash and cash equivalents	$ 3,448,526	$ 4,498,237
Trade accounts receivable	1,315
Other receivables	3,508	3,425
Prepaid expenses and other assets	82,206	100,474
Assets of segment held for sale		104,265
Total current assets	3,535,555	4,706,401
Property and equipment, net of accumulated depreciation of $319,830 and $308,386	7,930	24,009
Deposit	29,504	25,625
Total assets	3,572,989	4,756,035
Current liabilities
Accounts payable and accrued expenses	358,376	425,774
Accrued salaries and benefits	85,277	280,263
Liabilities of segment held for sale	10,205	25,040
Total current liabilities	453,858	731,077
Deferred rent	45,285	45,081
Warrant liability	215,853	3,125,393
Total liabilities	714,996	3,901,551
Commitments and contingencies
Stockholders' equity
Convertible preferred stock, $0.0001 par value, 5,000,000 shares authorized; Series B: 1 share issued and outstanding at March 31, 2013 and December 31, 2012; liquidation preference $1,000 per share
Series C: 229,337 shares issued and outstanding at March 31, 2013, and none issued and outstanding at December 31, 2012; liquidation preference $0.0001 per share	23
Common stock, $0.0001 par value, 50,000,000 shares authorized; 814,114 issued at at March 31, 2013 and December 31, 2012 and 813,713 outstanding at March 31, 2013 and December 31, 2012	82	82
Paid-in capital in excess of par value	42,330,462	36,630,406
Treasury stock, at cost, 401 shares at March 31, 2013 and December 31, 2012	(464,786)	(464,786)
Accumulated deficit	(39,007,788)	(35,311,218)
Total stockholders' equity	2,857,993	854,484
Total liabilities and stockholders' equity	$ 3,572,989	$ 4,756,035