Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Stockholders' Equity (ESPP) (Details) (ESPP, USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 73	$ 88	$ 189	$ 187
Expected dividend yield assumption (in Percent)			0.60%
Expected volatility assumption (in Percent)			33.37%
Three Months Ended [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate assumption (in Percent)			0.07%
Expected life assumption (in Years)			3 months
Six Months ended [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate assumption (in Percent)			0.09%
Expected life assumption (in Years)			6 months
Nine Months Ended [Member] \| Forecast
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate assumption (in Percent)			0.11%
Expected life assumption (in Years)			9 months
Twelve Months Ended [Member] \| Forecast
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate assumption (in Percent)			0.13%
Expected life assumption (in Years)			1 year