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Stockholders' Equity and Stock Based Compensation (Details 2) (Options, USD $)
In Millions, except Share data, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2009
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Options
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| Number of Options | |||
| Outstanding at the beginning of the period (in shares) | 374,140 | 392,890 | 392,890 |
| Exercised (in shares) | 63,500 | 18,750 | |
| Outstanding at the end of the period (in shares) | 310,640 | 374,140 | 392,890 |
| Exercisable at the end of the period (in shares) | 310,640 | 374,140 | |
| Weighted Average Exercise Price | |||
| Outstanding at the beginning of the period (in dollars per share) | $ 8.33 | $ 8.12 | $ 8.12 |
| Exercised (in dollars per share) | $ 6.78 | $ 3.85 | |
| Outstanding at the end of the period (in dollars per share) | $ 8.65 | $ 8.33 | $ 8.12 |
| Exercisable at the end of the period (in dollars per share) | $ 8.65 | ||
| Aggregate Intrinsic Value | |||
| Aggregate intrinsic value of options outstanding | $ 0.9 | ||
| Aggregate intrinsic value of options exercisable | $ 0.9 | ||
| Market value (in dollars per share) | $ 11.09 | ||
| X | ||||||||||
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- Definition
Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
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- Definition
Price of a single share of a number of saleable stocks of a company. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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