Share-Based Compensation Plan Stock options outstanding activity (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Shares [Roll Forward]
Outstanding at beginning of year (in shares)	82,171	160,171	165,915
Granted (in shares)	0	0	0
Exercised (in shares)	(2,743)	0	0
Forfeited (in shares)	(20,915)	(78,000)	(5,744)
Outstanding at end of period (in shares)	58,513	82,171	160,171
Options exercisable at year end (in shares)	58,513	82,171	130,086
Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning of year (in dollars per share)	$ 17.32	$ 20.40	$ 20.18
Granted (in dollars per share)	$ 0.00	$ 0.00	$ 0.00
Exercised (in dollars per share)	$ 14.00	$ 0.00	$ 0.00
Forfeited (in dollars per share)	$ 23.42	$ 23.64	$ 14.00
Outstanding at end of period (in dollars per share)	$ 15.30	$ 17.32	$ 20.40
Options exercisable at year end (in dollars per share)	$ 15.30	$ 17.32	$ 21.88