Significant Accounting Policies (Stock Transactions - Options Exercised Tables) (Details) (USD $)	3 Months Ended
	Mar. 31, 2012
Significant Accounting Policies [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	3,841
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value	$ 6,055
Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options	21,410
Tax deduction realized from options exercised	$ 513