Stock-Based Compensation (Stock Option Grants) (Details) (USD $)	12 Months Ended																				12 Months Ended		3 Months Ended
	Dec. 31, 2013 Director Group 1 [Member]	Dec. 31, 2013 Employee Group 1 [Member]	Dec. 31, 2013 Stock options [Member]	Dec. 31, 2013 Stock options [Member] Director Group 1 [Member]	Dec. 31, 2012 Stock options [Member] Director Group 1 [Member]	Dec. 31, 2011 Stock options [Member] Director Group 1 [Member]	Dec. 31, 2013 Stock options [Member] Director Group 2 [Member]	Dec. 31, 2011 Stock options [Member] Director Group 2 [Member]	Dec. 31, 2012 Stock options [Member] Director [Member]	Dec. 31, 2013 Stock options [Member] Employee Group 1 [Member]	Dec. 31, 2012 Stock options [Member] Employee Group 1 [Member]	Dec. 31, 2011 Stock options [Member] Employee Group 1 [Member]	Dec. 31, 2011 Stock options [Member] Employee Group 2 [Member]	Dec. 31, 2013 Stock options [Member] Employee inducement [Member]		Dec. 31, 2012 Stock options [Member] Employee inducement [Member]		Dec. 31, 2011 Stock options [Member] Employee inducement [Member] employee	Mar. 31, 2013 Stock options [Member] Employee inducement [Member] employee	Sep. 30, 2012 Stock options [Member] Employee inducement [Member] employee	Dec. 31, 2011 Stock options [Member] Employee inducement [Member] Minimum [Member]	Dec. 31, 2011 Stock options [Member] Employee inducement [Member] Maximum [Member]	Dec. 31, 2011 Performance-based options [Member] Employee inducement [Member]
Summary of stock option grants
Number of Options Granted (shares)			662,457	75,490	56,261	65,801	17,092	16,237	8,546	549,875	597,250	140,000	475,064	20,000	[1]	45,000	[2]	200,000					100,000
Vesting Period				1 year or less	1 year or less	1 year or less												3-4 years
Vesting Period	1 year	3 years					3 years	3 years	3 years	3 years	3 years	2 years	3 years	3 years	[1]	3 years	[2]				3 years	4 years
Weighted Average Exercise Price (usd per share)			$ 5.81	$ 5.67	$ 7.55	$ 7.23	$ 6.83	$ 6.32	$ 7.72	$ 5.75	$ 7.54	$ 6.09	$ 7.38	$ 7.14	[1]	$ 8.54	[2]	$ 5.37
Weighted Average Grant Date Fair Value (usd per share)				$ 2.00	$ 3.89	$ 4.06	$ 3.76	$ 3.98	$ 4.25	$ 2.48	$ 4.12	$ 3.72	$ 4.33	$ 3.81	[1]	$ 4.58	[2]	$ 3.13
Number of employees																		3	1	1

[1] The Company granted non-qualified performance-based stock options outside its existing stock-based compensation plans in the first quarter of 2013 to one employee in connection with the employee joining the Company.

[2] The Company granted non-qualified stock options outside its existing stock-based compensation plans in the third quarter of 2012 to one employee in connection with the employee joining the Company.