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Consolidated Statements of Shareholders' Equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Beginning Balance at May. 31, 2015 $ 23,373 $ 312 $ 4,928 $ 83,877 $ (65,744)
Net income 1,678     1,678  
Share-based compensation 82   82    
Ending Balance at May. 31, 2016 25,133 312 5,010 85,555 (65,744)
Net income 5     5  
Share-based compensation 161   161    
Ending Balance at May. 31, 2017 $ 25,299 $ 312 $ 5,171 $ 85,560 $ (65,744)