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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands
Common Stock [Member]
Treasury Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Noncontrolling Interest [Member]
Total
Balance, Beginning of Period at Jan. 31, 2017 $ 299 $ (313,838) $ 145,767 $ 508,207 $ 47,839 $ 388,274
Balance, Beginning of Period (in Shares) at Jan. 31, 2017 29,853 23,292        
Net income       4,544 1,068 5,612
Stock based compensation expense $ 6 23 29
Stock options and related tax effects (in Shares)        
Balance, End of Period at Apr. 30, 2017 $ 299 $ (313,832) 145,790 512,751 48,907 393,915
Balance, End of Period (in Shares) at Apr. 30, 2017 29,853 23,292        
Balance, Beginning of Period at Jan. 31, 2018 $ 299 $ (313,643) 146,923 547,913 50,434 431,926
Balance, Beginning of Period (in Shares) at Jan. 31, 2018 29,853 23,287        
Net income       9,496 856 10,352
Treasury stock acquired   $ (9,128)       (9,128)
Treasury stock acquired (in Shares)   126        
Capital contributions         110 110
Stock based compensation expense $ 13 58 71
Stock options and related tax effects (in Shares)        
Balance, End of Period at Apr. 30, 2018 $ 299 $ (322,758) $ 146,981 $ 557,409 $ 51,400 $ 433,331
Balance, End of Period (in Shares) at Apr. 30, 2018 29,853 23,413