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Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Treasury Stock, Common [Member]
Total
Balance at Apr. 30, 2023 $ 9,374 $ 49,136 $ (25,621) $ (3) $ 32,886
Balance (in Shares) at Apr. 30, 2023 9,373,776     741  
Contribution of stock to 401(k) plan $ 17 96     $ 113
Contribution of stock to 401(k) plan (in Shares) 17,013       17,013
Stock-based compensation expense   128     $ 128
Net income     2,042   2,042
Balance at Jul. 31, 2023 $ 9,391 49,360 (23,579) $ (3) 35,169
Balance (in Shares) at Jul. 31, 2023 9,390,789     741  
Balance at Apr. 30, 2024 $ 9,512 50,334 (20,027) $ (3) 39,816
Balance (in Shares) at Apr. 30, 2024 9,511,560     741  
Contribution of stock to 401(k) plan $ 26 215     $ 241
Contribution of stock to 401(k) plan (in Shares) 26,457       26,457
Stock-based compensation expense $ 28 316     $ 344
Stock-based compensation expense (in Shares) 27,815        
Shares withheld on employee taxes on vested equity awards       $ (62) (62)
Shares withheld on employee taxes on vested equity awards (in Shares)       4,569  
Exercise of stock options and stock appreciation rights - net of shares tendered for exercise price $ 2 (2)      
Exercise of stock options and stock appreciation rights - net of shares tendered for exercise price (in Shares) 1,819        
Dividends payable   (9,567)     (9,567)
Net income     2,430   2,430
Balance at Jul. 31, 2024 $ 9,568 $ 41,296 $ (17,597) $ (65) $ 33,202
Balance (in Shares) at Jul. 31, 2024 9,567,651     5,310