CONSOLIDATED STATEMETS OF INCOME (Parentheticals) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Qualified Cash Flow Hedging Instrument Expense, net of tax (benefit) expense of	$ 1,000	$ 1,000	$ 1,000
Reclassification to Pension and Post-Retirement Benefits Plans, net of tax (benefit) expense of	(389,000)	(231,000)	12,000
Unrealized Investment loss, net of tax expense (benefit) of	$ 40,000	$ 31,000	$ 30,000