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LONG-TERM DEBT (Details) (USD $)
1 Months Ended
Aug. 31, 2005
Dec. 31, 2011
Dec. 31, 2010
Long-term debt      
Long-term debt   $ 95,844,000 $ 95,844,000
Aggregate contractual maturities of long-term debt      
2013   15,844,000  
2035   80,000,000  
Long-term debt   95,844,000 95,844,000
7.00% Senior Notes due January 15, 2013; interest payable each January 15 and July 15 which commenced July 15, 2003
     
Long-term debt      
Long-term debt   15,844,000 15,844,000
Debt Instrument, Interest Rate, Stated Percentage   7.00% 7.00%
Aggregate contractual maturities of long-term debt      
Long-term debt   15,844,000 15,844,000
5% New York City Industrial Development Agency Liberty Bonds due September 1, 2035; interest payable each March 1 and September 1 which commenced March 1, 2006
     
Long-term debt      
Long-term debt issued, aggregate principal amount 80,000,000    
Long-term debt   80,000,000 80,000,000
Debt Instrument, Interest Rate, Stated Percentage 5.00%    
Aggregate contractual maturities of long-term debt      
Long-term debt   $ 80,000,000 $ 80,000,000