Share-Based Compensation and Employee Ownership Plans Stock Options (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014	Dec. 31, 2014
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	1 year 4 months 6 days		1 year 7 months 6 days
Weighted average remaining term, options exercisable	1 year 4 months 6 days
Aggregate Intrinsic Value
Closing stock price, in dollars per share	$ 5.20			$ 4.80
Equity Plans
Shares Subject to Option
Balance outstanding, beginning of period, shares	216,672
Options granted, shares	0
Options exercised, shares	0
Options expired, shares	0
Balance outstanding, end of period, shares	216,672
Options exercisable, shares	216,672
Weighted Average Exercise Price/Share
Balance outstanding, beginning of period, in dollars per share	$ 5.65
Options granted, in dollars per share	$ 0.00
Options exercised, in dollars per share	$ 0.00
Options expired, in dollars per share	$ 0.00
Balance outstanding, end of period, in dollars per share	$ 5.65
Options exercisable, in dollars per share	$ 5.65
Aggregate Intrinsic Value
Balance outstanding, beginning of period	$ 87	[1]
Balance outstanding, end of period	129	[1]
Options exercisable	$ 0	[1]

[1] Based on the Company's closing stock price of $5.20 on March 31, 2015 and $4.80 on December 31, 2014.