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Note 3 - Balance Sheet Components (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

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

		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, Plant and Equipment [Table Text Block]

		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

Schedule of Other Assets [Table Text Block]

		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

Schedule of Accrued Liabilities [Table Text Block]

		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

X

- Definition

Tabular disclosure of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; the aggregate carrying amount of current assets, not separately presented elsewhere in the balance sheet; and other deferred costs.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 10
-Topic 360
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the components of accrued liabilities.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the carrying amounts of other assets. This disclosure includes other current assets and other noncurrent assets.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfOtherAssetsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration