Shareholders' Equity And Puttable Common Stock (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Class of Stock [Line Items]
Common stock, authorized shares	10,000,000	10,000,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, issued shares	6,826,000	6,971,000
Preferred stock, dividend rate per annum	5.00%
Preferred stock, dividends per share		$ 0.54
Preferred Stock $100 Par Value [Member]
Class of Stock [Line Items]
Preferred shares, authorized shares	5,000	5,000
Preferred shares, par value	$ 100	$ 100
Preferred Stock $0.01 Par Value [Member]
Class of Stock [Line Items]
Preferred shares, authorized shares	10,000,000	10,000,000
Preferred shares, par value	$ 0.01	$ 0.01