Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 7,438,769	$ 5,506,941
Government contract receivable	1,497,545	659,409
Prepaid expenses	1,676,093	1,768,533
Total current assets	10,612,407	7,934,883
Property and equipment, net	149,947	149,974
Other assets	71,010	71,010
Total assets	10,833,364	8,155,867
Current liabilities:
Accounts payable	2,403,042	1,849,760
Accrued expenses	532,292	1,257,572
Total current liabilities	2,935,334	3,107,332
Stockholders’ equity:
Issued and outstanding shares – 13,839,478 and 10,536,875 at March 31, 2025 and December 31, 2024, respectively	13,839	10,537
Additional paid-in capital	142,597,923	134,394,079
Accumulated deficit	(134,713,732)	(129,356,081)
Total stockholders’ equity	7,898,030	5,048,535
Total liabilities and stockholders’ equity	$ 10,833,364	$ 8,155,867

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2