Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 21,910,183	$ 14,177,349
Prepaid expenses, deposits, and other current assets	766,932	472,464
Total current assets	22,677,115	14,649,813
Property and equipment, net	174,133	252,366
Intangible asset	8,639,000	8,639,000
Right of use asset	174,668	247,043
Other assets	252,057	322,301
Total assets	31,916,973	24,110,523
Current liabilities:
Accounts payable	1,411,717	1,251,412
Accrued expenses and other current liabilities	1,162,278	358,532
Current operating lease liability	112,953	111,477
Total current liabilities	2,686,948	1,721,421
Deferred income taxes	443,893	2,119,274
Noncurrent operating lease liability	61,715	135,566
Total liabilities	3,192,556	3,976,261
Commitments and Contingencies (Note 7)
Stockholders’ Equity:
Common stock, $0.001 par value: 1,000,000,000 shares authorized; 64,015,441 and 33,480,365 shares issued and outstanding at September 30, 2020 and December 31, 2019, respectively	64,016	33,481
Additional paid-in capital	130,507,728	111,824,859
Accumulated deficit	(101,847,327)	(91,724,078)
Total stockholders' equity	28,724,417	20,134,262
Total liabilities and stockholders' equity	$ 31,916,973	$ 24,110,523