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Note 4 - Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2025

Notes Tables

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

		December 31, 2025
		(Level 1)				(Level 2)				(Level 3)
Assets
Cash equivalents:
Money market accounts		$	6,300,291			$	—			$	—
Commercial paper			—				999,330				—
Marketable securities:
Commercial paper			—				11,139,880				—
US treasury bonds			—				1,238,538				—
US government agency bonds			—				250,552				—
Total assets measured at fair value		$	6,300,291			$	13,628,300			$	—

		December 31, 2024
		(Level 1)				(Level 2)				(Level 3)
Assets
Cash equivalents (money market accounts)		$	7,559,336			$	—			$	—
Marketable securities:
Commercial paper			—				18,032,943				—
US treasury bonds			—				7,951,060				—
US government agency bonds			—				3,938,520				—
Total assets measured at fair value		$	7,559,336			$	29,922,523			$	—

Marketable Securities [Table Text Block]

		December 31, 2025
		Amortized Cost				Unrealized gains				Unrealized losses				Fair Value
Commercial paper		$	11,134,856			$	5,024			$	—			$	11,139,880
US treasury bonds			1,237,794				744				—				1,238,538
US government agency bonds			250,504				48				—				250,552
Total		$	12,623,154			$	5,816			$	—			$	12,628,970

		December 31, 2024
		Amortized Cost				Unrealized gains				Unrealized losses				Fair Value
Commercial paper		$	18,019,334			$	16,393			$	(2,784	)		$	18,032,943
US treasury bonds			7,920,620				30,440				—				7,951,060
US government agency bonds			3,926,372				12,148				—				3,938,520
Total		$	29,866,326			$	58,981			$	(2,784	)		$	29,922,523

X

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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X

- Definition

Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets.

+ References

No definition available.

+ Details

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X

- References

No definition available.

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