Stockholders' Equity (Share Repurchase) (Details) (USD $)	12 Months Ended			13 Months Ended	12 Months Ended		16 Months Ended	3 Months Ended		12 Months Ended			0 Months Ended	5 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2011 September 2010 Share Repurchase Agreement [Member]	Dec. 31, 2010 September 2010 Share Repurchase Agreement [Member]	Dec. 31, 2011 September 2010 Share Repurchase Agreement [Member]	Dec. 31, 2013 August 2012 Share Repurchase Agreement [Member]	Aug. 20, 2012 August 2012 Share Repurchase Agreement [Member]	Dec. 31, 2013 December 2012 Share Repurchase Agreement [Member]	Dec. 03, 2013 December 2012 Share Repurchase Agreement [Member]	Dec. 31, 2012 December 2012 Share Repurchase Agreement [Member]	Aug. 15, 2013 August 2013 Share Repurchase Agreement [Member]	Dec. 31, 2013 August 2013 Share Repurchase Agreement [Member]	Dec. 31, 2013 August 2013 Share Repurchase Agreement [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount							$ 10,000,000				$ 10,000,000		$ 7,000,000
Purchase of treasury shares				302,178	15,000	55,000		292,171		262,000		40,000		127,510
Purchase of treasury shares, value	3,884,000	3,257,000	425,000	3,000,000	400,000	1,500,000				2,600,000		400,000		1,300,000
Treasury stock acquired, average cost per share								$ 9.60
Purchase of treasury shares	3,884,000	3,257,000	425,000					2,800,000
Common stock, discount on shares, percent									7.70%
Share price									$ 10.40
Stock Repurchase Program, Remaining Authorized Repurchase Amount															$ 5,700,000