Note 3 - Balance Sheet Components (10-K)

3 Months Ended

12 Months Ended

Mar. 31, 2024

Dec. 31, 2023

Notes to Financial Statements

Supplemental Balance Sheet Disclosures [Text Block]

3. Balance Sheet Components

Prepaid Expenses – Prepaid expenses consist of the following:

	March 31, 2024		December 31, 2023
Prepaid clinical trial costs (current portion)	$	1,996,677	$	1,282,746
Prepaid insurance premiums		73,797		110,695
Prepaid rent		13,045		13,045
Other prepaid expenses		10,000		26,667
Total prepaid expenses	$	2,093,519	$	1,433,153

Property and Equipment – Property and equipment consist of the following:

	March 31, 2024			December 31, 2023
Equipment and furnishings	$	774,758		$	774,758
Leasehold improvements		115,605			115,605
Total property and equipment		890,363			890,363
Accumulated depreciation and amortization		(700,250	)		(680,674	)
Total property and equipment, net	$	190,113		$	209,689

Other Assets – Other assets consist of the following:

	March 31, 2024		December 31, 2023
Prepaid clinical trial costs (noncurrent portion)	$	224,681	$	1,106,778
Prepaid technology license fees		70,000		70,000
Deposits		11,010		11,010
Total other assets	$	305,691	$	1,187,788

Accrued Expenses – Accrued expenses consist of the following:

	March 31, 2024		December 31, 2023
Payroll-related liabilities	$	152,407	$	114,337
Other accrued expenses		1,267,656		602,594
Total accrued expenses	$	1,420,063	$	716,931

3. Balance Sheet Components

Prepaid Expenses – Prepaid expenses consist of the following as of December 31, 2023 and 2022:

	2023		2022
Prepaid clinical trial costs (current portion)	$	1,282,746	$	1,171,077
Prepaid insurance premiums		110,695		107,876
Prepaid rent		13,045		13,045
Other prepaid expenses		26,667		34,000
Total prepaid expenses	$	1,433,153	$	1,325,998

Property and Equipment – Property and equipment consist of the following as of December 31, 2023 and 2022:

	2023			2022
Equipment and furnishings	$	774,758		$	725,812
Leasehold improvements		115,605			115,605
Total property and equipment		890,363			841,417
Accumulated depreciation and amortization		(680,674	)		(606,505	)
Total property and equipment, net	$	209,689		$	234,912

Depreciation expense was $74,169 and $56,284 during the years ended December 31, 2023 and 2022, respectively.

Other Assets – Other assets consist of the following as of December 31, 2023 and 2022:

	2023		2022
Prepaid clinical trial costs (noncurrent portion)	$	1,106,778	$	2,083,276
Prepaid technology license fees		70,000		80,000
Deposits		11,010		11,010
Total other assets	$	1,187,788	$	2,174,286

Accrued Expenses – Accrued expenses consist of the following as of December 31, 2023 and 2022:

	2023		2022
Accrued license fees	$	-	$	2,000,000
Payroll-related liabilities		114,337		550,810
Other accrued expenses		602,594		449,402
Total accrued expenses	$	716,931	$	3,000,212