PENSION PLANS (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
PENSION PLANS [Abstract]
Highest consecutive years of employee compensation used to compute benefit	3 years
Years of employment used in benefit computation	10 years
Defined Contribution Pension [Abstract]
Employer matching contribution percent of employee contribution (in hundredths)	5.00%
Maximum annual contribution per employee	$ 2,500
Defined Benefit Pension Plan [Member]
Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	14,942,000	12,526,000
Service cost	272,000	306,000	301,000
Interest cost	584,000	615,000	622,000
Benefits paid	(556,000)	(531,000)
Actuarial loss	1,655,000	2,026,000
Benefit obligation at end of year	16,897,000	14,942,000	12,526,000
Unrecognized prior service cost	269,000	359,000
Unrecognized actuarial loss	5,119,000	3,845,000
Total unrecognized cost	5,388,000	4,204,000
Accumulated benefit obligation	16,600,000	14,100,000
Assumptions Used to Determine the Benefit Obligations [Abstract]
Discount rate (in hundredths)	3.25%	4.00%
Rate of compensation increase (in hundredths)	4.00%	4.00%
Assumptions Used to Determine the Net Periodic Pension Cost Cost [Abstract]
Discount rate (in hundredths)	4.00%	5.00%	5.50%
Rate of compensation increase (in hundredths)	4.00%	4.00%	4.00%
Net Pension Cost [Abstract]
Service cost	272,000	306,000	301,000
Interest cost	584,000	615,000	622,000
Amortization of prior service cost	90,000	90,000	90,000
Amortization of net actuarial loss	381,000	141,000	54,000
Net periodic benefit cost	1,327,000	1,152,000	1,067,000
Benefit Payments to be Made From the Non-qualified Pension Plan [Abstract]
2013	1,043,000
2014	983,000
2015	983,000
2016	1,021,000
2017	1,021,000
Next five years thereafter	5,487,000
Cash surrender value of life insurance policies	3,300,000	2,600,000
Defined Contribution Plan [Member]
Defined Contribution Pension [Abstract]
Employer matching contribution percent of employee contribution (in hundredths)	5.00%
Maximum annual contribution per employee	2,500
Employer contribution to plan	$ 0	$ 128,000	$ 0