Share-Based Compensation Plan Stock options outstanding activity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Shares [Roll Forward]
Outstanding at beginning of year (in shares)	58,513
Granted (in shares)	0
Exercised (in shares)	(19,772)	(2,743)
Forfeited (in shares)	(3,000)
Outstanding at end of period (in shares)	35,741
Options exercisable at year end (in shares)	35,741
Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning of year (in dollars per share)	$ 15.30
Granted (in dollars per share)	$ 0.00
Exercised (in dollars per share)	$ 14.00
Forfeited (in dollars per share)	$ 39.40
Outstanding at end of period (in dollars per share)	$ 14.00
Options exercisable at year end (in dollars per share)	$ 14.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 134		$ 160
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	74
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value	$ 134