v3.26.1
EARNINGS PER SHARE - Earnings per share - Diluted (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Numerator:    
Net Income (Loss) $ 10,288 $ 12,716
Denominator:    
Weighted average number of common shares outstanding - basic (in shares) 5,337 5,318
Dilutive effect of unvested shares of restricted common stock 33 31
Dilutive effect of shares issuable upon the exercise of stock options that are in-the-money 23 20
Weighted average number of common shares outstanding - diluted (in shares) 5,393 5,369
Earnings per share - diluted (in dollars per share) $ 1.91 $ 2.37