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Consolidated Condensed Statements Of Equity (USD $) In Thousands, except Share data | Common Stock [Member] | Treasury Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Noncontrolling Interest [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Balance at Jan. 31, 2012 | $ 299 | $ (215,105) | $ 142,994 | $ 324,323 | $ 29,332 | $ 281,843
Balance (in Shares) at Jan. 31, 2012 | 29,853,000 | 21,523,000 |  |  |  |
Net income |  |  |  | 1,739 | 1,042 | 2,781
Treasury stock acquired |  | (3,541) |  |  |  | (3,541)
Treasury stock acquired (in Shares) |  | 170,000 |  |  |  | 32,935
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) |  | (99,000) |  |  |  |
Balance at Jul. 31, 2012 | 299 | (217,647) | 143,667 | 326,062 | 28,391 | 280,772
Balance (in Shares) at Jul. 31, 2012 | 29,853,000 | 21,594,000 |  |  |  |
Balance at Jan. 31, 2013 | 299 | (219,550) | 143,575 | 322,028 | 27,931 | 274,283
Balance (in Shares) at Jan. 31, 2013 | 29,853,000 | 21,701,000 |  |  |  |
Net income |  |  |  | 9,332 | 1,486 | 10,818
Treasury stock acquired |  | (856) |  |  |  | (856)
Treasury stock acquired (in Shares) |  | 46,000 |  |  |  |
Stock options and related tax effects |  | 636 | 213 |  |  | 849
Stock options and related tax effects (in Shares) |  | (62,000) |  |  |  |
Balance at Jul. 31, 2013 | $ 299 | $ (219,770) | $ 143,788 | $ 331,360 | $ 29,417 | $ 285,094
Balance (in Shares) at Jul. 31, 2013 | 29,853,000 | 21,685,000 |  |  |  |

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