Note 3 - Balance Sheet Components (Tables)

9 Months Ended

Sep. 30, 2024

Notes Tables

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]

	September 30, 2024		December 31, 2023
Prepaid clinical trial costs (current portion)	$	1,706,281	$	1,282,746
Prepaid insurance premiums		-		110,695
Prepaid rent		13,045		13,045
Other prepaid expenses		10,000		26,667
Total prepaid expenses	$	1,729,326	$	1,433,153

Property, Plant and Equipment [Table Text Block]

	September 30, 2024			December 31, 2023
Equipment and furnishings	$	795,411		$	774,758
Leasehold improvements		115,605			115,605
Total property and equipment		911,016			890,363
Accumulated depreciation and amortization		(739,401	)		(680,674	)
Total property and equipment, net	$	171,615		$	209,689

Schedule of Other Assets [Table Text Block]

	September 30, 2024		December 31, 2023
Prepaid clinical trial costs (noncurrent portion)	$	-	$	1,106,778
Prepaid technology license fees		60,000		70,000
Deposits		11,010		11,010
Total other assets	$	71,010	$	1,187,788

Schedule of Accrued Liabilities [Table Text Block]

	September 30, 2024		December 31, 2023
Payroll-related liabilities	$	169,719	$	114,337
Accrued clinical trial costs		220,501		490,635
Other accrued expenses		70,000		111,959
Total accrued expenses	$	460,220	$	716,931