Treasury And Common Stock - Schedule Of Common Stock (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended
	Jan. 31, 2012	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2012 Common Stock	Dec. 31, 2012 Common Stock
Stock Issued During Period, Shares, Acquisitions	681,324		681,324
Beginning balance, Shares	25,641,484	26,505,210	25,641,484
Beginning balance, Amount	$ 514	$ 530	$ 514		$ 530
Common stock issued in connection with long-term incentive plan, Shares		15,401	33,710
Stock Issued During Period, Value, Acquisitions			14,628	14
Common stock issued in connection with long-term incentive plan, Amount			0
Ending balance, Shares		26,520,611	26,356,518
Ending balance, Amount		$ 531	$ 528		$ 530