CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 2,882,657	$ 3,715,895
Restricted cash	275,000	275,000
Prepaid expense	227,936	193,293
Other current assets	0	110,663
Total current assets	3,385,593	4,294,851
Furniture and equipment, net	145,970	171,568
Intangible assets, net	1,492,121	1,700,565
Other assets	76,337	76,337
Total assets	5,100,021	6,243,321
Current liabilities
Accounts payable	429,052	814,448
Accrued expenses	169,001	463,676
Payroll liabilities	724,934	1,159,335
Other current liabilities	3,848	64,128
Total current liabilities	$ 1,326,835	$ 2,501,587
Commitments and contingencies (note 13)
Stockholders' equity
Preferred stock - $.001 par value; 10,000,000 shares authorized, 0 shares issued and outstanding	$ 0	$ 0
Common stock - $.001 par value; 75,000,000 shares authorized, 38,823,464 and 32,657,257 shares issued and outstanding	38,823	32,657
Additional paid-in capital	56,996,766	54,643,940
Accumulated deficit	(53,262,403)	(50,934,863)
Total stockholders' equity	3,773,186	3,741,734
Total liabilities and stockholders' equity	$ 5,100,021	$ 6,243,321