STOCK COMPENSATION PLANS (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 Director	Dec. 31, 2012	Dec. 31, 2011	May 25, 2005
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorizes under the plan (in shares)				500,000
Number of directors consists in committee	3
Weighted Average Exercise [Abstract]
Fair value of options granted (in dollars per shares)	$ 4.04	$ 2.92	$ 3.50
Total intrinsic value of options exercised	$ 367,000	$ 449,000	$ 167,000
Received cash from the exercise of options	1,139,000
Tax benefit realized during the period	367,000
Options Exercisable [Abstract]
Unrecognized expense related to non-vested option shares	47,000
Period over which unvested options cost will recognized	0 years 4 months 24 days
1992 Non-Qualified Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorizes under the plan (in shares)	375,000
Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of fair market value stock options are priced (in hundredths)	85.00%
Directors and Officers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of fair market value stock options are priced (in hundredths)	90.00%
$15.26 - $19.31 [Member] | Employee and director [Member]
Options Outstanding [Abstract]
Range of Exercise Price, Minimum (in dollars per shares)	$ 15.26
Range of Exercise Price, Maximum (in dollars per shares)	$ 19.31
Shares Outstanding (in shares)	209,250
Weighted Average Remaining Life	5 years 2 months 19 days
Weighted Average Exercise Price (in dollars per shares)	$ 17.70
Aggregate Intrinsic Value	1,098,873
Options Exercisable [Abstract]
Range of Exercise Price, Minimum (in dollars per shares)	$ 15.26
Range of Exercise Price, Maximum (in dollars per shares)	$ 19.31
Shares Exercisable (in shares)	209,250
Weighted Average Remaining Life	5 years 2 months 19 days
Weighted Average Exercise Price (in dollars per shares)	$ 17.70
Aggregate Intrinsic Value	1,098,873
$19.32 - $22.66 [Member] | Employee and director [Member]
Options Outstanding [Abstract]
Range of Exercise Price, Minimum (in dollars per shares)	$ 19.32
Range of Exercise Price, Maximum (in dollars per shares)	$ 22.66
Shares Outstanding (in shares)	177,750
Weighted Average Remaining Life	3 years 7 months 20 days
Weighted Average Exercise Price (in dollars per shares)	$ 20.46
Aggregate Intrinsic Value	443,471
Options Exercisable [Abstract]
Range of Exercise Price, Minimum (in dollars per shares)	$ 19.32
Range of Exercise Price, Maximum (in dollars per shares)	$ 22.66
Shares Exercisable (in shares)	144,000
Weighted Average Remaining Life	2 years 3 months 22 days
Weighted Average Exercise Price (in dollars per shares)	$ 19.94
Aggregate Intrinsic Value	$ 433,683
Class A Stock [Member] | Key Employees and Officers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorizes under the plan (in shares)	150,000
Class A Stock [Member] | Stock Options [Member]
Shares [Abstract]
Outstanding at beginning of year (in shares)	421,500	450,000	440,800
Granted (in shares)	33,750	33,750	33,750
Exercised (in shares)	(68,250)	(62,250)	(24,550)
Expired (in shares)	0	0	0
Outstanding at end of year (in shares)	387,000	421,500	450,000
Options exercisable at year end (in shares)	353,250	387,750	416,250
Weighted Average Exercise [Abstract]
Outstanding at beginning of year (in dollars per shares)	$ 18.30	$ 17.61	$ 17.18
Granted (in dollars per shares)	$ 22.66	$ 19.01	$ 19.06
Exercised (in dollars per shares)	$ 16.68	$ 13.68	$ 11.87
Expired (in dollars per shares)	$ 0	$ 0	$ 0
Outstanding at end of year (in dollars per shares)	$ 18.96	$ 18.30	$ 17.61
Options exercisable at year end (in dollars per shares)	$ 18.61	$ 18.24	$ 17.49