FAIR VALUE MEASUREMENTS (Details) (USD $)	3 Months Ended		9 Months Ended			9 Months Ended	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 SERP [Member]	Dec. 31, 2013 SERP [Member]	Sep. 30, 2014 Recurring [Member]	Dec. 31, 2013 Recurring [Member]	Sep. 30, 2014 Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	Dec. 31, 2013 Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	Sep. 30, 2014 Recurring [Member] Significant Other Observable Inputs (Level 2) [Member]	Dec. 31, 2013 Recurring [Member] Significant Other Observable Inputs (Level 2) [Member]	Sep. 30, 2014 Recurring [Member] Significant Unobservable Inputs (Level 3) [Member]	Dec. 31, 2013 Recurring [Member] Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross unrealized gains associated with the investment held in the rabbi trust	$ (12,000)	$ 46,000	$ 95,000	$ 27,000		$ 600,000	$ 400,000
Combined fair value of available-for-sale securities	100,000		100,000		100,000
Gross unrealized gains	100,000		100,000		100,000
Financial Assets Fair Value [Abstract]
Investments held in Rabbi Trust								4,867,000	3,313,000	4,867,000	3,313,000	0	0	0	0
Marketable securities								4,000	3,000	4,000	3,000	0	0	0	0
Total								4,871,000	3,316,000	4,871,000	3,316,000	0	0	0	0
Fair value of long-term debt	234,300,000		234,300,000
Carrying amount of long-term debt	$ 235,313,000		$ 235,313,000