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CAPITAL TRANSACTIONS (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
0 Months Ended | 3 Months Ended | 12 Months Ended | 12 Months Ended | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Nov. 26, 2012
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Nov. 02, 2012
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Aug. 23, 2012
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Aug. 01, 2012
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May 29, 2012
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May 07, 2012
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Dec. 31, 2012
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Dec. 31, 2012
Maximum
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Dec. 31, 2012
Stock options
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Dec. 31, 2011
Stock options
|
Dec. 31, 2010
Stock options
|
Dec. 31, 2012
Stock options
Minimum
|
Dec. 31, 2011
Stock options
Minimum
|
Dec. 31, 2010
Stock options
Minimum
|
Dec. 31, 2012
Stock options
Maximum
|
Dec. 31, 2011
Stock options
Maximum
|
Dec. 31, 2010
Stock options
Maximum
|
Dec. 31, 2012
Time-based stock options
|
Dec. 31, 2011
Time-based stock options
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Dec. 31, 2010
Time-based stock options
|
Dec. 31, 2012
Time-based stock options
Maximum
|
Dec. 31, 2012
Performance based stock options
|
Dec. 31, 2011
Performance based stock options
|
Dec. 31, 2010
Performance based stock options
|
Dec. 31, 2012
2009 Incentive Plan
|
Dec. 31, 2011
2009 Incentive Plan
|
Dec. 31, 2010
2009 Incentive Plan
|
Dec. 31, 2012
2009 Incentive Plan
Stock options
|
Dec. 31, 2012
2009 Incentive Plan
Time-based stock options
|
Dec. 31, 2012
2012 Incentive Plan
|
Dec. 31, 2012
2012 Incentive Plan
Stock options
|
Dec. 31, 2012
1995 Stock Plan
Maximum
|
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| Dividends [Abstract] | |||||||||||||||||||||||||||||||||||
| Cash Dividend per common share (in dollars per share) | $ 0.05 | $ 0.05 | $ 0.05 | $ 0.05 | $ 0.05 | $ 0.05 | $ 0.15 | ||||||||||||||||||||||||||||
| Dividend paid | $ 789 | $ 780 | $ 780 | $ 2,349 | |||||||||||||||||||||||||||||||
| Share-based Compensation | |||||||||||||||||||||||||||||||||||
| Number of shares authorized under the plan | 400 | 1,500 | |||||||||||||||||||||||||||||||||
| Expiration period | 10 years | 10 years | 10 years | 10 years | 10 years | 10 years | 10 years | ||||||||||||||||||||||||||||
| Number of shares | |||||||||||||||||||||||||||||||||||
| Options outstanding at the beginning of the period (in shares) | 1,374 | 1,374 | 859 | 455 | |||||||||||||||||||||||||||||||
| Granted (in shares) | 686 | 630 | 475 | 630 | 475 | 217 | 469 | ||||||||||||||||||||||||||||
| Forfeited or canceled (in shares) | (35) | (79) | (48) | ||||||||||||||||||||||||||||||||
| Exercised (in shares) | (241) | (36) | (23) | ||||||||||||||||||||||||||||||||
| Options outstanding at the end of the period (in shares) | 1,784 | 1,784 | 1,784 | 1,374 | 859 | ||||||||||||||||||||||||||||||
| Weighted Average Exercise Price Per Share | |||||||||||||||||||||||||||||||||||
| Options outstanding at the beginning of the period (in dollars per share) | $ 9.88 | $ 9.20 | $ 8.25 | ||||||||||||||||||||||||||||||||
| Granted (in dollars per share) | $ 15.11 | $ 10.84 | $ 10.03 | $ 15.65 | $ 10.84 | $ 10.03 | $ 15.65 | $ 14.86 | $ 14.86 | ||||||||||||||||||||||||||
| Forfeited or canceled (in dollars per share) | $ 13.60 | $ 9.64 | $ 9.98 | ||||||||||||||||||||||||||||||||
| Exercised (in dollars per share) | $ 9.95 | $ 11.08 | $ 5.81 | ||||||||||||||||||||||||||||||||
| Options outstanding at the end of the period (in dollars per share) | $ 11.81 | $ 9.88 | $ 9.20 | ||||||||||||||||||||||||||||||||
| Share-based compensation, additional disclosures | |||||||||||||||||||||||||||||||||||
| Vesting period | 48 months | 2 years | 1 year | ||||||||||||||||||||||||||||||||
| Operating income margin, one (as a percent) | 6.00% | ||||||||||||||||||||||||||||||||||
| Operating income margin, two (as a percent) | 8.00% | ||||||||||||||||||||||||||||||||||
| Operating income margin, three (as a percent) | 10.00% | ||||||||||||||||||||||||||||||||||
| Period of time during which operating income margins must be achieved in order to vest in performance based stock options | 12 months | ||||||||||||||||||||||||||||||||||
| Consecutive period of time used to assess operating income margins which determine vesting | 15 months | ||||||||||||||||||||||||||||||||||
| Options that will not vest until certain operating income metrics have been achieved (in shares) | 300 | ||||||||||||||||||||||||||||||||||
| Expiration period | 10 years | 10 years | 10 years | 10 years | 10 years | 10 years | 10 years | ||||||||||||||||||||||||||||
| Aggregate intrinsic values of options exercised | 1,427 | 211 | 82 | ||||||||||||||||||||||||||||||||
| Weighted-average assumptions used to calculate fair value of options granted | |||||||||||||||||||||||||||||||||||
| Weighted-average grant date fair value (in dollars per share) | $ 7.21 | $ 5.13 | $ 4.27 | $ 7.66 | $ 5.13 | $ 4.27 | $ 7.66 | $ 7.00 | $ 7.00 | ||||||||||||||||||||||||||
| Expected life | 4 years | 4 years | 3 years | 6 years | 4 years | ||||||||||||||||||||||||||||||
| Risk-free interest rate (as a percent) | 0.30% | 0.70% | 0.60% | 0.90% | 1.20% | 1.50% | |||||||||||||||||||||||||||||
| Expected volatility (as a percent) | 58.50% | 49.00% | 51.30% | 66.00% | 67.70% | 65.80% | |||||||||||||||||||||||||||||
| Dividend yield (as a percent) | 0.00% | 0.00% | 0.00% | 1.30% | |||||||||||||||||||||||||||||||
| Share-based compensation, related information | |||||||||||||||||||||||||||||||||||
| Share-based compensation expense | 2,101 | 557 | 437 | 653 | 2,921 | 0 | |||||||||||||||||||||||||||||
| Related tax benefits | 378 | 850 | 222 | 173 | 255 | 1,168 | 0 | ||||||||||||||||||||||||||||
| Unrecognized share-based compensation expense | 2,715 | 607 | 451 | ||||||||||||||||||||||||||||||||
| Weighted-average period over which the remaining compensation cost is expected to be recognized | 1 year 9 months 18 days | ||||||||||||||||||||||||||||||||||
| Potential compensation expense | $ 600 | ||||||||||||||||||||||||||||||||||