Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 6,587,018	$ 37,313,558
Marketable securities	19,270,940	0
Prepaid expenses, deposits and other current assets	464,884	510,015
Total current assets	26,322,842	37,823,573
Other assets	0	15,578
Total assets	26,322,842	37,839,151
Current liabilities:
Accounts payable	807,372	947,495
Accrued expenses and other current liabilities	1,463,280	1,980,189
Total current liabilities	2,270,652	2,927,684
Commitments and Contingencies (Note 9)
Stockholders’ Equity:
Common stock, $0.001 par value: 1,000,000,000 shares authorized: 2,039,236 and 2,038,185 shares issued and outstanding at September 30, 2022 and December 31, 2021, respectively	2,039	2,038
Additional paid-in capital	165,657,681	164,914,540
Accumulated other comprehensive loss	(86,955)	0
Accumulated deficit	(141,520,575)	(130,005,111)
Total stockholders' equity	24,052,190	34,911,467
Total liabilities and stockholders' equity	$ 26,322,842	$ 37,839,151

Carrying amount as of the balance sheet date of consideration paid in advance for costs that provide economic benefits within a future period, amounts transferred third parties for security purposes that are expected to be returned or applied towards payment, and assets not separately disclosed in the balance sheet that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

No definition available.