Accounting Policies - Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Accounting Policies [Abstract]
Net Income (Loss) Available to Common Stockholders, Diluted	$ 813		$ 16,190
Net Income (Loss) Available to Common Stockholders, Basic	$ 813		$ 16,190
Earnings Per Share, Basic [Abstract]
Stock options, SARs and restricted stock, Weighted-Average Shares	459	[1]	424	[1]
Stock options, SARs and restricted stock (in usd per share)	$ 0	[1]	$ (0.06)	[1]
Weighted Average Number of Shares Outstanding, Basic	10,887		10,737
Basic earnings per common share	$ 0.07		$ 1.51
Weighted Average Number of Shares Outstanding, Diluted	11,346		11,161
Diluted earnings per common share	$ 0.07		$ 1.45

[1] (1)For the three months ended March 31, 2014 and 2013, stock options and SARs of 32,983 and 4,000, respectively, were outstanding but not included in the computation of diluted earnings per share of common stock because they were anti-dilutive. For the three months ended March 31, 2014 and 2013, contingent shares of non-vested restricted stock of 31,594 and 25,300, respectively, were outstanding but not included in the computation of diluted earnings per share of common stock because performance conditions were not met.