RETIREMENT PLAN (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net periodic defined benefit pension expense [Abstract]
Service cost	$ 0	$ 603,000
Interest cost	498,000	555,000
Expected return on plan assets	(575,000)	(527,000)
Net amortization	61,000	160,000
Net periodic benefit expense	(16,000)	791,000
Minimum required contribution for the pension plan	1,000,000
Additional minimum required contribution for the pension plan	$ 0