CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 19,105,830	$ 7,444,052
Prepaid expenses and other current assets	652,893	1,322,167
Asset held for sale	0	7,000,000
Total current assets	19,758,723	15,766,219
Property and equipment, net	214,100	222,464
Restricted cash	151,196	151,016
Other assets	415,555	667,747
Total assets	20,539,574	16,807,446
Current liabilities
Accounts payable	222,340	1,895,613
Accrued expenses	2,333,733	2,270,045
Short-term debt, net	1,210,645	0
Operating lease obligation	164,808	172,310
Other current liabilities	199,261	205,991
Total current liabilities	4,130,787	4,543,959
Non-current liabilities
Operating lease obligation, less current portion	42,746	163,198
Long term debt, net	1,944,396	1,072,123
Other non-current liabilities	0	9,755
Total non-current liabilities	1,987,142	1,245,076
Total liabilities	6,117,929	5,789,035
Commitments and contingencies (Note 11)
Stockholders’ equity
Convertible preferred stock; $0.01 par value; 10,000,000 shares authorized; seven issued and outstanding at September 30, 2020 and December 31, 2019	0	0
Common stock; $0.01 par value; 200,000,000 authorized; 162,147,973 and 52,746,728 shares issued at September 30, 2020 and December 31, 2019, respectively; 162,026,473 and 52,625,228 shares outstanding at September 30, 2020 and December 31, 2019, respectively	1,621,480	527,467
Treasury Stock, at cost, 121,500 shares at September 30, 2020 and December 31, 2019	(47,864)	(47,864)
Additional paid-in capital	82,359,494	62,018,632
Accumulated deficit	(69,511,465)	(51,479,824)
Total stockholders’ equity	14,421,645	11,018,411
Total liabilities and stockholders’ equity	$ 20,539,574	$ 16,807,446