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LONG-TERM DEBT (Details) (USD $)
 6 Months Ended
Jun. 30, 2012
Nov. 15, 2011
Old Credit Facility
Jun. 30, 2012
New Credit Facility
Jun. 30, 2012
New Credit Facility
Actual
Jun. 30, 2012
New Credit Facility
Minimum
Jun. 30, 2012
New Credit Facility
Minimum
Requirement
Jun. 30, 2012
New Credit Facility
Maximum
Requirement
Long-term debt              
Maximum borrowing capacity   $ 60,000,000 $ 100,000,000        
Number of trailing quarters during which certain financial ratios are to be maintained and minimum level of EBITDA is to be achieved     12 months        
Leverage ratio       2.3     3.25
Fixed charge coverage ratio       25.9   1.15  
Reduction in maximum borrowing capacity per quarter (as a percent)     1.50%        
Amount in which the maximum borrowing capacity may be permanently reduced         500,000    
Multiple which may be used to permanently reduce the maximum borrowing capacity under the credit facility     50,000        
Maturities of Borrowings Under New Credit Facility              
Thereafter 88,000,000            
Total 88,000,000            
One-time fees and other loan costs     1,600,000        
Outstanding amount     $ 88,000,000        
Variable interest rate base     LIBOR        
Percentage points added to the reference rate (as a percent)     2.25%        
One-month LIBOR interest rate (as a percent)     0.25%