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Stock Based Compensation (Summary of Stock Based Compensation) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Stock Based Compensation [Abstract]
Stock based compensation expense recognized	$ 370,000	$ 359,000	$ 276,000
Unvested Stock Options Number	710,600	612,350	445,350
Unvested Stock Options Fair Value	1,091,948	1,337,780	1,158,861
Amount remaining to be recognized as expense	$ 467,314	$ 554,763	$ 531,757

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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