XML 51 R40.htm IDEA: XBRL DOCUMENT v3.24.1.1.u2
Note 7 - Stock-based Compensation - Stock-based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2024
Apr. 30, 2023
Restricted Stock [Member]    
Stock-based compensation expense $ 228 $ 229