Retirement Plans (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 item	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2014	Dec. 31, 2010
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	$ 10,851,000	$ 9,754,000	$ 9,019,000		$ 9,217,000
Defined benefit plan, fair value of plan assets, excluding cash and cash equivalents	10,528,000	9,341,000
Favorable rate of return equal to or greater than average inflation rate	5.00%
Investment objective achievement period	60 years
Single stock issue restricted among total portfolio value	5.00%
Securities held in mutual or commingled funds	90.00%
Expected return on plan assets	6.50%	6.50%	6.50%
Defined benefit plan, estimated future employer contributions in next fiscal year				700,000
Net periodic pension cost	385,000	462,000	306,000
Interest cost on projected benefit obligation	505,000	564,000	609,000
Defined benefit plan, expected return on plan assets	(615,000)	(584,000)	(590,000)
Defined contribution plan, number of separate plans	2
Defined contribution plan, employer discretionary contribution amount	300,000	100,000	200,000
Scenario, Forecast for 2014 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic pension cost	(4,000)
Interest cost on projected benefit obligation	500,000
Defined benefit plan, expected return on plan assets	(700,000)
Defined benefit plan, amortization of gains (losses)	200,000
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	300,000	400,000
Bonds and Notes [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	3,500,000
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	7,100,000
Defined benefit plan, fair value of plan assets, excluding cash and cash equivalents	$ 7,080,000	$ 6,153,000
Defined benefit plan, target plan asset allocations range, minimum	45.00%
Defined benefit plan, target plan asset allocations range, maximum	75.00%
Standard Commercial P & C Business Unit [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum hours of service to participate within defined benefit plan	1000 hours