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Consolidated Statements Of Shareholders' Equity (USD $) In Thousands, except Share data | Common Stock [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Total
--- | --- | --- | --- | ---
Beginning Balance at Apr. 30, 2010 | $ 88,153 | $ 108,643 | $ (21,478) | $ 175,318
Common Stock, Shares, Outstanding, Beginning Balance at Apr. 30, 2010 | 14,205,462 |  |  |
Net income (loss) |  | (20,018) |  | (20,018)
Other comprehensive loss, net of tax |  |  | (460) | (460)
Stock-based compensation | 3,995 |  |  | 3,995
Adjustments to excess tax benefit from stock-based compensation | (1,347) |  |  | (1,347)
Cash dividends |  | (5,130) |  | (5,130)
Exercise of stock-based compensation awards | 394 |  |  | 394
Exercise of stock-based compensation awards, shares | 27,401 |  |  |
Employee benefit plan contributions, shares | 62,677 |  |  |
Employee benefit plan contributions | 1,213 |  |  | 1,213
Balance at Apr. 30, 2011 | 92,408 | 83,495 | (21,938) | 153,965
Common Stock, Shares, Outstanding, Ending Balance at Apr. 30, 2011 | 14,295,540 |  |  |
Net income (loss) |  | (20,786) |  | (20,786)
Other comprehensive loss, net of tax |  |  | (5,669) | (5,669)
Stock-based compensation | 3,413 |  |  | 3,413
Adjustments to excess tax benefit from stock-based compensation | (859) |  |  | (859)
Cash dividends |  | (1,287) |  | (1,287)
Exercise of stock-based compensation awards | 12 |  |  | 12
Exercise of stock-based compensation awards, shares | 19,410 |  |  |
Employee benefit plan contributions, shares | 80,323 |  |  |
Employee benefit plan contributions | 1,231 |  |  | 1,231
Balance at Apr. 30, 2012 | 96,205 | 61,422 | (27,607) | 130,020
Common Stock, Shares, Outstanding, Ending Balance at Apr. 30, 2012 | 14,395,273 |  |  | 14,395,273
Net income (loss) |  | 9,758 |  | 9,758
Other comprehensive loss, net of tax |  |  | (4,543) | (4,543)
Stock-based compensation | 3,509 |  |  | 3,509
Adjustments to excess tax benefit from stock-based compensation | (650) |  |  | (650)
Exercise of stock-based compensation awards | 5,768 |  |  | 5,768
Exercise of stock-based compensation awards, shares | 328,490 |  |  |
Employee benefit plan contributions, shares | 98,817 |  |  |
Employee benefit plan contributions | 2,333 |  |  | 2,333
Balance at Apr. 30, 2013 | $ 107,165 | $ 71,180 | $ (32,150) | $ 146,195
Common Stock, Shares, Outstanding, Ending Balance at Apr. 30, 2013 | 14,822,580 |  |  | 14,822,580

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