CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 3,193,188	$ 7,444,052
Prepaid expenses and other current assets	1,169,297	1,322,167
Asset held for sale	7,000,000	7,000,000
Total current assets	11,362,485	15,766,219
Property and equipment, net	248,997	222,464
Restricted cash	151,100	151,016
Other assets	551,163	667,747
Total assets	12,313,745	16,807,446
Current liabilities
Accounts payable	1,548,309	1,895,613
Accrued expenses	1,383,658	2,270,045
Operating lease obligation	176,616	172,310
Other current liabilities	206,415	205,991
Total current liabilities	3,314,998	4,543,959
Non-current liabilities
Operating lease obligation, less current portion	117,142	163,198
Long term debt, net	1,580,560	1,072,123
Other non-current liabilities	3,940	9,755
Total non-current liabilities	1,701,642	1,245,076
Total liabilities	5,016,640	5,789,035
Commitments and contingencies (Note 8)
Stockholders’ equity
Convertible preferred stock, $0.01 par value, 10,000,000 shares authorized, seven issued and outstanding at March 31, 2020 and December 31, 2019	0	0
Common stock, $0.01 par value, 200,000,000 authorized, 52,746,728 shares issued and 52,625,228 shares outstanding at March 31, 2020 and December 31, 2019	527,467	527,467
Treasury Stock, at cost, 121,500 shares at March 31, 2020 and December 31, 2019	(47,864)	(47,864)
Additional paid-in capital	62,241,145	62,018,632
Accumulated deficit	(55,423,643)	(51,479,824)
Total stockholders’ equity	7,297,105	11,018,411
Total liabilities and stockholders’ equity	$ 12,313,745	$ 16,807,446