Pension Plans (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Change in benefit obligation:
Benefit obligation at beginning of year	$ 10,736,000	$ 9,722,000
Interest cost	443,000	454,000	491,000
Actuarial (gain) loss	(1,013,000)	735,000
Benefits paid	(182,000)	(188,000)
Other	(2,000)	13,000
Benefit obligation at end of year	9,982,000	10,736,000	9,722,000
Change in plan assets:
Fair value of plan assets at beginning of year	7,024,000	6,347,000
Actual gain on plan assets	951,000	714,000
Employer contribution	4,000	151,000
Benefits paid	(182,000)	(188,000)
Fair value of plan assets at end of year	7,797,000	7,024,000	6,347,000
Unfunded status	(2,185,000)	(3,712,000)
Amounts recognized in consolidated balance sheets
Accrued benefit cost	(729,000)	(707,000)
Liability for pension benefits	(1,456,000)	(3,005,000)
Total	(2,185,000)	(3,712,000)
Amounts recognized in accumulated other comprehensive loss that have not yet been recognized as components of net periodic benefit cost
Net actuarial loss, pre-tax	2,743,000	4,255,000
Accumulated benefit obligation	9,982,000	10,736,000
Components of net periodic pension (benefit) cost
Service cost			153,000
Interest cost	443,000	454,000	491,000
Expected return on plan assets	(552,000)	(508,000)	(526,000)
Curtailment loss			45,000
Recognized net actuarial loss	100,000	80,000	139,000
Net amortization			10,000
Net periodic pension cost	(9,000)	26,000	312,000
Amounts expected to recognized as components of net periodic benefit cost, which are included in accumulated other comprehensive loss
Actuarial loss	$ 59,000
Net Periodic Pension Cost
Weighted-average discount rate (as a percent)	4.40%	5.00%	6.10%
Weighted-average rate of compensation increase (as a percent)			4.00%
Expected long-term rate of return on plan assets (as a percent)	8.00%	8.00%	8.50%
Benefit Obligation
Weighted-average discount rate (as a percent)	5.00%	4.40%