Stockholders' Equity (Share Repurchase) (Details) (USD $)	12 Months Ended		0 Months Ended	12 Months Ended	13 Months Ended	0 Months Ended	5 Months Ended	12 Months Ended	0 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Aug. 20, 2012	Dec. 03, 2013	Dec. 31, 2013	Aug. 15, 2013	Dec. 31, 2013	Dec. 31, 2014	Dec. 16, 2014	Aug. 16, 2012
Equity, Class of Treasury Stock [Line Items]
Purchase of treasury shares, value	$ 3,884,000	$ 3,257,000
Share price								9.93
August 2012 Share Repurchase Agreement [Member]
Equity, Class of Treasury Stock [Line Items]
Purchase of treasury shares, shares			292,171
Treasury stock acquired, average cost per share			$ 9.60
Purchase of treasury shares, value			2,800,000
Common stock, discount on shares, percent			7.70%
Share price										$ 10.40
December 2012 Share Repurchase Agreement [Member]
Equity, Class of Treasury Stock [Line Items]
Purchase of treasury shares, shares	261,873	40,305			302,178
Purchase of treasury shares, value	2,600,000	400,000			3,000,000
Stock repurchase program, authorized amount				10,000,000
August 2013 Share Repurchase Agreement [Member]
Equity, Class of Treasury Stock [Line Items]
Purchase of treasury shares, shares							127,510	0
Purchase of treasury shares, value							1,300,000
Stock repurchase program, authorized amount						7,013,838
December 2014 Share Repurchase Agreement [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount									$ 8,000,000