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Consolidated Statements of Changes in Shareholders' Equity (USD $) In Thousands | Total | Common Stock | Additional Paid-In Capital | Treasury Stock | Retained Earnings | Accumulated Other Comprehensive Income
--- | --- | --- | --- | --- | --- | ---
Beginning balance at Jan. 31, 2010 | $ 84,955 | $ 107 | $ 75,746 | $ (4,843) | $ 10,247 | $ 3,698
Beginning balance, shares at Jan. 31, 2010 |  | 10,737 |  |  |  |
Net income | 4,729 |  |  |  | 4,729 |
Foreign currency translation | 3,356 |  |  |  |  | 3,356
Issuance of common stock upon exercise of options | 396 | 1 | 395 |  |  |
Issuance of common stock upon exercise of options, shares |  | 77 |  |  |  |
Restricted stock issued | 185 | 1 | 184 |  |  |
Restricted stock issued, shares |  | 58 |  |  |  |
Tax expense from exercise of stock options and vesting of restricted stock | (5) |  | (5) |  |  |
Stock-based compensation | 1,099 |  | 1,099 |  |  |
Ending balance at Jan. 31, 2011 | 94,715 | 109 | 77,419 | (4,843) | 14,976 | 7,054
Ending balance, shares at Jan. 31, 2011 |  | 10,872 |  |  |  |
Net income | 24,321 |  |  |  | 24,321 |
Foreign currency translation | 150 |  |  |  |  | 150
Issuance of common stock upon exercise of options | 2,822 | 3 | 2,819 |  |  |
Issuance of common stock upon exercise of options, shares |  | 344 |  |  |  |
Stock offering | 31,028 | 23 | 31,005 |  |  |
Stock offering, shares |  | 2,300 |  |  |  |
Restricted stock issued | 303 | 1 | 302 |  |  |
Restricted stock issued, shares |  | 40 |  |  |  |
Restricted stock forfeited for taxes | (14) |  |  | (14) |  |
Tax expense from exercise of stock options and vesting of restricted stock | 778 |  | 778 |  |  |
Stock-based compensation | 1,331 |  | 1,331 |  |  |
Ending balance at Jan. 31, 2012 | 155,434 | 136 | 113,654 | (4,857) | 39,297 | 7,204
Ending balance, shares at Jan. 31, 2012 |  | 13,556 |  |  |  |
Net income | 17,051 |  |  |  | 17,051 |
Foreign currency translation | 977 |  |  |  |  | 977
Issuance of common stock upon exercise of options | 332 | 2 | 330 |  |  |
Issuance of common stock upon exercise of options, shares | 158 | 158 |  |  |  |
Restricted stock issued | 516 |  | 516 |  |  |
Restricted stock issued, shares |  | 49 |  |  |  |
Restricted stock forfeited for taxes | (3) |  |  | (3) |  |
Tax expense from exercise of stock options and vesting of restricted stock | 420 |  | 420 |  |  |
Stock-based compensation | 1,586 |  | 1,586 |  |  |
Ending balance at Jan. 31, 2013 | $ 176,313 | $ 138 | $ 116,506 | $ (4,860) | $ 56,348 | $ 8,181
Ending balance, shares at Jan. 31, 2013 |  | 13,763 |  |  |  |

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