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Pension Plans (Details 2) (USD $)	3 Months Ended	6 Months Ended		3 Months Ended		6 Months Ended
Pension Plans (Details 2) (USD $)	Jun. 30, 2013 SERP	Jun. 30, 2013 SERP	Dec. 31, 2012 SERP	Jun. 30, 2013 Defined contribution 401 (k) plan)	Jun. 30, 2012 Defined contribution 401 (k) plan)	Jun. 30, 2013 Defined contribution 401 (k) plan)	Jun. 30, 2012 Defined contribution 401 (k) plan)
Defined contribution plan disclosures
Expenses recorded under the plan	$ 15,000	$ 30,000		$ 27,000	$ 30,000	$ 48,000	$ 56,000
Employer contributions	0	55,000
Liability for benefits	$ 35,000	$ 35,000	$ 60,000

The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit.

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