Stock Benefit Plans Stock Options Roll Forward (Details) (Stock Options, USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Stock Options
Shares
Balance, beginning of period	65,000
Options forfeited	(1,000)
Balance, end of period	64,000
Exercisable	58,000
Weighted-Average Remaining Contractual Term (Years)	7 years 0 months 22 days
Weighted Average Exercise Price (in dollars per share)
Balance, beginning of period	$ 30.93
Options forfeited	$ 39.04
Balance, end of period	$ 30.84
Exercisable	$ 31.31
Weighted-Average Remaining Contractual Term (Years)	6 years 9 months 26 days
Aggregate Intrinsic Value
Outstanding	$ 38
Exercisable	$ 26