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Note 7 - Marketable Debt Securities (Tables)

9 Months Ended

Aug. 31, 2025

Notes Tables

Marketable Securities [Table Text Block]

		Cost				Unrealized Gains				Unrealized Losses				Fair Value				Investments
Corporate bonds		$	1,475			$	20			$	-			$	1,495			$	1,495
U.S. Treasury securities			999				7				-				1,006				1,006
Total		$	2,474			$	27			$	-			$	2,501			$	2,501

		Cost				Unrealized Gains				Unrealized Losses				Fair Value				Investments
Corporate bonds		$	2,950			$	18			$	-			$	2,968			$	2,968
U.S. Treasury securities			5,889				47				-				5,936				5,936
Total		$	8,839			$	65			$	-			$	8,904			$	8,904

Investments Classified by Contractual Maturity Date [Table Text Block]

		August 31, 2025
		Cost				Fair Value
Due within one year or less		$	1,475			$	1,495
Due after one year through five years			999				1,006
		$	2,474			$	2,501

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

										August 31, 2025
										Fair Value Measurement Based on
										Quoted Prices in Active Market				Significant Other Observable Inputs				Significant Unobservable Inputs
		Cost				Fair Value				(Level 1)				(Level 2)				(Level 3)
Cash equivalents		$	551			$	551			$	551			$	-			$	-
Corporate bonds			1,475				1,495				-				1,495				-
U.S. Treasury securities			999				1,006				-				1,006				-
Total		$	3,025			$	3,052			$	551			$	2,501			$	-

										November 30, 2024
										Fair Value Measurement Based on
										Quoted Prices in Active Market				Significant Other Observable Inputs				Significant Unobservable Inputs
		Cost				Fair Value				(Level 1)				(Level 2)				(Level 3)
Cash equivalents		$	11,304			$	11,304			$	11,304			$	-			$	-
Corporate bonds			2,950				2,968				-				2,968				-
U.S. Treasury securities			5,889				5,936				-				5,936				-
Total		$	20,143			$	20,208			$	11,304			$	8,904			$	-

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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- Definition

Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

+ References

No definition available.

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- 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.

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