RETIREMENT FUND AND PROFIT SHARING PLAN (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Balance sheet amounts [Abstract]
Minimum pension obligation and unfunded pension liability	$ 11,649,000		$ 11,649,000		$ 10,830,000
SERP [Member]
Components of SERP expense [Abstract]
Service cost	138,000	139,000	414,000	417,000
Interest cost	135,000	112,000	405,000	337,000
Amortization of adjustments	46,000	77,000	138,000	231,000
Total SERP expense	319,000	328,000	957,000	985,000
Balance sheet amounts [Abstract]
Minimum pension obligation and unfunded pension liability	11,649,000		11,649,000		10,830,000
Amounts recognized in accumulated other comprehensive loss, pretax [Abstract]
Prior service cost	1,094,000		1,094,000		1,230,000
Net loss	1,004,000		1,004,000		1,004,000
Total amounts recognized in accumulated other comprehensive loss	2,098,000		2,098,000		2,234,000
401(k) Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer match of the first 1% of compensation contributed by participants (in hundredths)			100.00%
Percentage of participant contribution under condition one (in hundredths)	1.00%		1.00%
Employer match of the next 5% compensation contributed by participants (in hundredths)			50.00%
Percentage of employee deferrals under condition two (in hundredths)	5.00%		5.00%
Compensation expense	300,000	100,000	600,000	400,000
401(k) Plan [Member] | Class A [Member]
Defined Benefit Plan Disclosure [Line Items]
Shares owned by plan (in shares)	14,886		14,886
401(k) Plan [Member] | Class B [Member]
Defined Benefit Plan Disclosure [Line Items]
Shares owned by plan (in shares)	181,831		181,831
Non-defined Retirement Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Maximum annual contribution by eligible employee (in hundredths)			5.00%
Minimum employer contribution to plan (in hundredths)			5.00%
Employer contribution of eligible salary (in hundredths)			7.00%
Compensation expense	$ 100,000	$ 100,000	$ 200,000	$ 200,000
Non-defined Retirement Fund [Member] | Class A [Member]
Defined Benefit Plan Disclosure [Line Items]
Shares owned by plan (in shares)	3,323		3,323
Non-defined Retirement Fund [Member] | Class B [Member]
Defined Benefit Plan Disclosure [Line Items]
Shares owned by plan (in shares)	17,342		17,342