Pension Plan (Narrative) (Details) (USD $)	6 Months Ended
Jun. 30, 2014
Pension Plan [Abstract]
Contribution to the plan for 2014	$ 1,679,091

Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period.

No definition available.

Name:	us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration