Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net income	$ 2,120,000	$ 1,681,000
Interest rate swaps:
Adjustment for amortization of losses included in net income	5,000	21,000
Income tax expense	2,000	7,000
Post retirement benefit plan adjustments:
Net actuarial loss	12,000	50,000
Prior service costs	(124,000)	(124,000)
Income tax benefit	35,000	21,000
Comprehensive income	$ 2,046,000	$ 1,642,000