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STOCK COMPENSATION PLANS (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
May. 25, 2005
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]          
Granted, option shares (in shares)     0    
Share Based Compensation Arrangement By Share Based Payment Award Nonvested Options Outstanding [Roll Forward]          
Granted, option shares (in shares)     0    
Non-vested shares of Class A Stock under option [Abstract]          
Vesting period for granted option (in years)     1 year    
Options granted term (in years)     10 years    
Weighted-average assumptions used for grants issued [Abstract]          
Expected Dividend Yield (in hundredths)       3.88%  
Expected Stock Price Volatility (in hundredths)       26.50%  
Weighted Average Risk-Free Interest Rate (in hundredths)       2.24%  
Weighted Average Expected Life of Options (in years)     7 years 6 months 7 days    
Class A Stock [Member] | 2005 Equity Compensation Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares authorizes for new issues         500,000
Compensation expense $ 13,000 $ 34,000 $ 46,000 $ 67,000  
Class A Stock [Member] | Stock Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]          
Outstanding at beginning of period, option shares (in shares)     376,250    
Granted, option shares (in shares)     0    
Exercised, option shares (in shares)     (176)    
Outstanding at end of period, option shares (in shares) 376,074   376,074    
Options exercisable at end of period, option share (in shares) 376,074   376,074    
Shares of Class A Non-Voting Common Stock under option [Abstract]          
Outstanding at beginning of period, weighted average exercise price (in dollars per shares)     $ 19.52    
Granted, weighted average exercise price (in dollars per shares)     0    
Exercised, weighted average exercise price (in dollars per shares)     19.70    
Outstanding at end of period, weighted average exercise price (in dollars per shares) $ 19.52   19.52    
Options exercisable at end of period, weighted average exercise price (in dollars per shares) $ 19.52   $ 19.52    
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2     3 years 11 months 26 days    
Options exercisable at end of period, weighted average remaining life (in years)     3 years 11 months 26 days    
Options exercisable at beginning of period, aggregate intrinsic value     $ 1,157,000    
Exercised, aggregate intrinsic value     324    
Outstanding at end of period, aggregate intrinsic value $ 669,600   669,600    
Options exercisable at end of period, aggregate intrinsic value $ 669,600   $ 669,600    
Share Based Compensation Arrangement By Share Based Payment Award Nonvested Options Outstanding [Roll Forward]          
Granted, option shares (in shares)     0    
Class A Stock [Member] | Non-Vested Stock Option [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]          
Granted, option shares (in shares)     0    
Share Based Compensation Arrangement By Share Based Payment Award Nonvested Options Outstanding [Roll Forward]          
Outstanding at beginning of period, Non-vested option shares (in shares)     33,750    
Granted, option shares (in shares)     0    
Vested, option shares (in shares)     (33,750)    
Canceled, option shares (in shares)     0    
Outstanding at end of period, Non-vested option shares (in shares) 0   0    
Non-vested shares of Class A Stock under option [Abstract]          
Outstanding at beginning of period, weighted average grant - date fair value per option (in dollars per shares)     $ 3.95    
Granted, weighted average grant - date fair value per option (in dollars per shares)     0    
Vested, weighted average grant - date fair value per option (in dollars per shares)     3.95    
Canceled, weighted average grant - date fair value per option (in dollars per shares)     0    
Outstanding at end of period, weighted average grant - date fair value per option (in dollars per shares) $ 0   $ 0