Share-Based Compensation and Employee Ownership Plans Stock Options (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014		Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%
Weighted Average Exercise Price/Share
Weighted average remaining term, options outstanding	2 years 1 month 28 days		2 years 4 months 24 days
Weighted average remaining term, options exercisable	2 years 1 month 28 days
Aggregate Intrinsic Value
Closing stock price, in dollars per share	$ 4.41		$ 3.91
Equity Plans
Shares Subject to Option
Balance outstanding, beginning of period, shares	300,006
Options granted, shares	0
Options acquired, shares	0
Options expired, shares	0
Balance outstanding, end of period, shares	300,006
Options exercisable, shares	300,006
Weighted Average Exercise Price/Share
Balance outstanding, beginning of period, in dollars per share	$ 7.19
Options granted, in dollars per share	$ 0
Options acquired, in dollars per share	$ 0
Options expired, in dollars per share	$ 0
Balance outstanding, end of period, in dollars per share	$ 7.19
Options exercisable, in dollars per share	$ 7.19
Aggregate Intrinsic Value
Balance outstanding, beginning of period	$ 0	[1]
Balance outstanding, end of period	0	[1]
Options exercisable	$ 0	[1]

[1] Based on the Company's closing stock price of $4.41 on March 31, 2014 and $3.91 on December 31, 2013.