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Stock Options and Restricted Stock (Details) (USD $)	1 Months Ended	3 Months Ended
	Feb. 28, 2013 Officers	Mar. 31, 2013 Officers Incentiveplans	Mar. 31, 2012
Stock Options And Restricted Stock (Additional Textual) [Abstract]
Number of equity incentive plans		3
Number of executive officers	1	3
Stock options exercised, Shares		95,000
Proceeds from stock option exercises		$ 855,000
Share Based Compensation Expense		$ 300,000	$ 100,000
Executive Officer [Member]
Stock Options And Restricted Stock (Textual) [Abstract]
Restricted common stock, granted shares	26,010	3,131

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Number of equity incentive plans.

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Number of executive officers granted restricted common stock.

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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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The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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