Stockholders' Equity - Common, Preferred and Treasury Shares Activity (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 Common Stock	Dec. 31, 2012 Common Stock	Dec. 31, 2013 Treasury Stock	Dec. 31, 2012 Treasury Stock	Dec. 31, 2013 Series G1 Convertible Preferred Stock	Dec. 31, 2012 Series G1 Convertible Preferred Stock	Dec. 31, 2011 Series G1 Convertible Preferred Stock	Dec. 31, 2013 Series G2 Convertible Preferred Stock	Dec. 31, 2012 Series G2 Convertible Preferred Stock	Dec. 31, 2011 Series G2 Convertible Preferred Stock
Beginning balance						1,000	1,000	1,000	1,000	1,000	1,000
Beginning balance	435,328	435,328	462,015
Shares issued for preferred stock dividends		4	4
Reverse stock split - buy back of partial shares			(1,485)
Treasury stock repurchase	33,389			33,389	25,206
Treasury stock retirements	(33,389)	(33,389)	(25,206)	(33,389)	(25,206)
Ending balance						1,000	1,000	1,000	1,000	1,000	1,000
Ending balance	401,943	401,943	435,328