Shareholders' Equity Restricted Stock (Details) (USD $)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Gross	456,709	304,402
Stock Issued During Period, Value, Restricted Stock Award, Gross	$ 3,389,700	$ 1,858,300
weighted average estimated fair value of restricted stock	$ 7.42	$ 6.10