Share-Based Compensation and Employee Ownership Plans Stock Options (Details) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended		12 Months Ended
	Sep. 30, 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	1 year 8 months 19 days		2 years 4 months 24 days
Weighted average remaining term, options exercisable	1 year 8 months 19 days
Aggregate Intrinsic Value
Closing stock price, in dollars per share	$ 3.75		$ 3.91
Equity Plans
Shares Subject to Option
Balance outstanding, beginning of period, shares	300,006
Options granted, shares	0
Options exercised, shares	(33,334)
Options expired, shares	(33,334)
Balance outstanding, end of period, shares	233,338
Options exercisable, shares	233,338
Weighted Average Exercise Price/Share
Balance outstanding, beginning of period, in dollars per share	$ 7.19
Options granted, in dollars per share	$ 0.00
Options exercised, in dollars per share	$ 3.50
Options expired, in dollars per share	$ 17.61
Balance outstanding, end of period, in dollars per share	$ 6.22
Options exercisable, in dollars per share	$ 6.22
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 $3.75 on September 30, 2014 and $3.91 on December 31, 2013.