Quarterly report [Sections 13 or 15(d)]

Note 7 - Marketable Securities - Schedule of Fair Value Measurement (Details)

v3.26.1
Note 7 - Marketable Securities - Schedule of Fair Value Measurement (Details) - USD ($)
$ in Thousands
Feb. 28, 2026
Nov. 30, 2025
Fair value $ 1,755 $ 1,754
Corporate Debt Securities [Member]    
Fair value 749 748
US Treasury Securities [Member]    
Fair value 1,006 1,006
Reported Value Measurement [Member]    
Cash equivalents 4,668 5,043
Total 6,404 6,779
Reported Value Measurement [Member] | Corporate Debt Securities [Member]    
Fair value 737 737
Reported Value Measurement [Member] | US Treasury Securities [Member]    
Fair value 999 999
Estimate of Fair Value Measurement [Member]    
Cash equivalents 4,668 5,043
Total 6,423 6,797
Estimate of Fair Value Measurement [Member] | Corporate Debt Securities [Member]    
Fair value 749 748
Estimate of Fair Value Measurement [Member] | US Treasury Securities [Member]    
Fair value 1,006 1,006
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]    
Cash equivalents 4,668 5,043
Total 4,668 5,043
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member]    
Fair value 0 0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | US Treasury Securities [Member]    
Fair value 0 0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]    
Cash equivalents 0 0
Total 1,755 1,754
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member]    
Fair value 749 748
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | US Treasury Securities [Member]    
Fair value 1,006 1,006
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]    
Cash equivalents 0 0
Total 0 0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member]    
Fair value 0 0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | US Treasury Securities [Member]    
Fair value $ 0 $ 0