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Consolidated Condensed Statements Of Equity (USD $)
In Thousands
Common Stock [Member]
Treasury Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Noncontrolling Interest [Member]
Total
Balance at Jan. 31, 2011 $ 299 $ (193,713) $ 142,293 $ 296,053 $ 25,032 $ 269,964
Balance (in Shares) at Jan. 31, 2011 29,853 20,461        
Net income       6,999 590 7,589
Noncontrolling interests distribution         (1,796) (1,796)
Other         (192) (192)
Treasury stock acquired   (6,353)       (6,353)
Treasury stock acquired (in Shares)   393        
Noncontrolling interests distribution and other           (1,988)
Stock options and related tax effects   4,066 86     4,152
Stock options and related tax effects (in Shares)   (436)        
Balance at Jul. 31, 2011 299 (196,000) 142,379 303,052 23,634 273,364
Balance (in Shares) at Jul. 31, 2011 29,853 20,418        
Balance at Jan. 31, 2012 299 (215,105) 142,994 324,323 29,332 281,843
Balance (in Shares) at Jan. 31, 2012 29,853 21,523        
Net income       1,739 1,042 2,781
Treasury stock acquired   (3,541)       (3,541)
Treasury stock acquired (in Shares)   170        
Noncontrolling interests distribution and other         (1,983) (1,983)
Stock options and related tax effects   999 673     1,672
Stock options and related tax effects (in Shares)   (99)        
Balance at Jul. 31, 2012 $ 299 $ (217,647) $ 143,667 $ 326,062 $ 28,391 $ 280,772
Balance (in Shares) at Jul. 31, 2012 29,853 21,594