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CAPITAL TRANSACTIONS (Details 3) (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Share-based Compensation |  |  |  |
Outstanding options to purchase (in shares) | 1,784 | 1,374 |  |
RSUs |  |  |  |
Share-based compensation, additional disclosures |  |  |  |
Number of monthly installments for vesting of stock awards | 12 |  |  |
Stock options |  |  |  |
Share-based Compensation |  |  |  |
Outstanding options to purchase (in shares) | 1,784 | 1,374 | 859 | 455
Expected to vest (in shares) | 644 | 602 |  |
Exercisable (in shares) | 1,011 | 772 |  |
Aggregate Intrinsic value, outstanding | $ 5,315 | $ 7,757 |  |
Aggregate Intrinsic value, exercisable | 5,016 | 4,819 |  |
Aggregate Intrinsic value, expected to vest | 281 | 2,732 |  |
Share-based compensation, additional disclosures |  |  |  |
Related tax benefits | 378 |  |  |
2012 Incentive Plan |  |  |  |
Share-based compensation, additional disclosures |  |  |  |
Vesting period | 1 year |  |  |
2012 Incentive Plan | RSUs |  |  |  |
Number of Shares |  |  |  |
Granted (in shares) | 18 |  |  |
Issued (in shares) | 0 |  |  |
Units outstanding at the end of the period (in shares) | 18 |  |  |
Weighted Average Grant Date Fair Value |  |  |  |
Granted (in dollars per share) | $ 12.07 |  |  |
Vested (in dollars per share) | $ 0 |  |  |
Units outstanding at the end of the period (in dollars per share) | $ 12.07 |  |  |
Share-based compensation, additional disclosures |  |  |  |
Share-based compensation expense | 124 |  |  |
Related tax benefits | 49 |  |  |
Unrecognized share-based compensation expense | $ 99 |  |  |
Weighted-average period over which the remaining compensation cost is expected to be recognized | 4 months 24 days |  |  |

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