Stock Based Compensation (Narrative) (Details) (USD $)	3 Months Ended				3 Months Ended			0 Months Ended		3 Months Ended			0 Months Ended		3 Months Ended		12 Months Ended			3 Months Ended	0 Months Ended			0 Months Ended	3 Months Ended			0 Months Ended	3 Months Ended
	Mar. 31, 2014 item employee	Jan. 28, 2014	Apr. 23, 2013	May 07, 2012	Mar. 31, 2014 Top Executives [Member]	Mar. 31, 2014 Unrestricted Stock [Member]	Mar. 31, 2013 Unrestricted Stock [Member]	Jan. 14, 2014 Unrestricted Stock [Member] Independent Director [Member]	Jan. 15, 2013 Unrestricted Stock [Member] Independent Director [Member]	Mar. 31, 2014 Restricted Stock Units (RSUs) [Member]	Mar. 31, 2013 Restricted Stock Units (RSUs) [Member]	Mar. 31, 2014 Time Based Restricted Stock Units [Member]	Jan. 28, 2014 Time Based Restricted Stock Units [Member] 2014 Grants [Member]	Mar. 31, 2014 Performance Based Restricted Stock Units [Member]	Mar. 31, 2014 Absolute Performance Based Restricted Stock Units [Member] employee	Mar. 31, 2014 Absolute Performance Based Restricted Stock Units [Member] 2012 Grants [Member] employee	Dec. 31, 2013 Absolute Performance Based Restricted Stock Units [Member] 2012 Grants [Member]	May 31, 2015 Absolute Performance Based Restricted Stock Units [Member] 2012 Grants [Member] Scenario, Forecast [Member]	May 31, 2014 Absolute Performance Based Restricted Stock Units [Member] 2012 Grants [Member] Scenario, Forecast [Member]	Mar. 31, 2014 Absolute Performance Based Restricted Stock Units [Member] 2013 Grants [Member] employee	May 07, 2014 Absolute Performance Based Restricted Stock Units [Member] 2013 Grants [Member] Scenario, Forecast [Member]	May 31, 2016 Absolute Performance Based Restricted Stock Units [Member] 2013 Grants [Member] Scenario, Forecast [Member]	May 31, 2015 Absolute Performance Based Restricted Stock Units [Member] 2013 Grants [Member] Scenario, Forecast [Member]	Jan. 28, 2014 Absolute Performance Based Restricted Stock Units [Member] 2014 Grants [Member]	Mar. 31, 2014 Absolute Performance Based Restricted Stock Units [Member] Top Executives [Member] 2012 Grants [Member]	Mar. 31, 2014 Absolute Performance Based Restricted Stock Units [Member] Top Executives [Member] 2013 Grants [Member]	Mar. 31, 2014 Relative Performance Based Restricted Stock Units [Member] employee	Jan. 28, 2014 Relative Performance Based Restricted Stock Units [Member] 2014 Grants [Member]	Mar. 31, 2014 Relative Performance Based Restricted Stock Units [Member] Top Executives [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted to independent directors (in shares)								4,470	6,708
Stock-based compensation expense included in net income						$ 30,000	$ 30,000			$ 416,000	$ 243,000
Vesting period	3 years				1 year							3 years			3 years	3 years				3 years					1 year	1 year	3 years		1 year
Maximum shares allocated to each share based compensation unit (in shares)														1.5
Number of types of Performance-Based RSUs	2
Number of top executives	4														4	4				4							4
Number of shares vested and paid out																	21,564				8,450
Number of remaining shares expected to vest (in shares)																		3,000	3,000			3,525	3,525
Percentage of restricted stock units vested (in hundredths)																	53.00%			150.00%
Number of shares paid out																	21,564			20,064
Awards Granted (in shares)						4,470				42,650			7,950											17,351				17,349
Closing market stock price		$ 25.95	$ 17.66	$ 19.35