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STOCKHOLDERS' EQUITY (Details) (USD $)
 0 Months Ended 12 Months Ended
Jan. 21, 2013
Oct. 22, 2012
Jul. 31, 2012
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
STOCKHOLDERS' EQUITY            
Preferred stock par value (in dollars per share)       $ 1 $ 1  
Number of classes of preferred stock outstanding       1    
Dividend paid       $ 230,450 $ 364,625 $ 876,566
Common stock authorized (in shares)       100,000,000 100,000,000  
Common stock no par value (in dollars per share)       $ 0.00 $ 0.00  
Common stock outstanding (in shares)       27,252,463 25,318,700  
Number of shares repurchased       67,102    
Preferred Stock Class A
            
STOCKHOLDERS' EQUITY            
Preferred stock authorized (in shares)       5,000,000    
Preferred stock par value (in dollars per share)       $ 1.00    
Preferred Stock Class B
            
STOCKHOLDERS' EQUITY            
Preferred stock authorized (in shares)       5,000,000 5,000,000  
Preferred stock par value (in dollars per share)       $ 1.00 $ 1.00  
Number of series of preferred stock class B       5    
Preferred stock, remaining authorized shares to which series have Not been assigned       3,998,448    
Series I Class B
            
STOCKHOLDERS' EQUITY            
Preferred stock par value (in dollars per share)       $ 1 $ 1  
Preferred stock outstanding (in shares)       103,500 103,500  
Cumulative annual dividend payable quarterly (in dollars per share)       $ 0.50    
Dividend paid 12,938 12,938 38,813 51,750 90,000 216,000
Preferred stock dividend in arrears       13,000 13,000  
Period after which stock is redeemable at the option of the entity       3 years    
Preferred stock redemption price (in dollars per share)       $ 7.50    
Preferred stock conversion ratio       1    
Period after which stock can be converted at the option of the stockholders       3 years    
Number of shares of preferred stock converted into common stock       0 0  
Amount per share the holders of the preferred stock entitled to in voluntary or involuntary dissolution, liquidation or winding up of the Company (in dollars per share)       $ 6.25    
Series II Class B
            
STOCKHOLDERS' EQUITY            
Preferred stock par value (in dollars per share)       $ 1 $ 1  
Preferred stock outstanding (in shares)       178,700 178,700  
Cumulative annual dividend payable quarterly (in dollars per share)       $ 1.00    
Dividend paid 44,675 44,675.00 134,025 178,700 274,625 660,566
Preferred stock dividend in arrears       45,000 45,000  
Period after which stock is redeemable at the option of the entity       3 years    
Preferred stock redemption price (in dollars per share)       $ 15.00    
Preferred stock conversion ratio       1    
Period after which stock can be converted at the option of the stockholders       3 years    
Number of shares of preferred stock converted into common stock       0 0  
Amount per share the holders of the preferred stock entitled to in voluntary or involuntary dissolution, liquidation or winding up of the Company (in dollars per share)       $ 12.50    
Number of consecutive quarters in which preferred stockholders have no voting right until dividends are in arrears       12    
Right of preferred stock holders to elect a specified proportion of board of directors       0.33    
Series III Class B Stock
            
STOCKHOLDERS' EQUITY            
Preferred stock par value (in dollars per share)       $ 1 $ 1  
Preferred stock outstanding (in shares)       130,245 130,245  
Cumulative annual dividend payable quarterly (in dollars per share)       $ 1.00    
Preferred stock dividend in arrears       3,497,000 3,366,000  
Period after which stock is redeemable at the option of the entity       3 years    
Preferred stock redemption price (in dollars per share)       $ 15.00    
Preferred stock conversion ratio       1    
Period after which stock can be converted at the option of the stockholders       3 years    
Number of shares of preferred stock converted into common stock       0 0  
Amount per share the holders of the preferred stock entitled to in voluntary or involuntary dissolution, liquidation or winding up of the Company (in dollars per share)       $ 12.50    
Series IV Class B Stock
            
STOCKHOLDERS' EQUITY            
Preferred stock par value (in dollars per share)       $ 1 $ 1  
Preferred stock outstanding (in shares)       542,500 542,500  
Cumulative annual dividend payable quarterly (in dollars per share)       $ 1.00    
Preferred stock dividend in arrears       6,881,000 6,338,000  
Period after which stock is redeemable at the option of the entity       3 years    
Preferred stock redemption price (in dollars per share)       $ 11.00    
Preferred stock conversion ratio       1    
Period after which stock can be converted at the option of the stockholders       3 years    
Number of shares of preferred stock converted into common stock       0 0  
Amount per share the holders of the preferred stock entitled to in voluntary or involuntary dissolution, liquidation or winding up of the Company (in dollars per share)       $ 11.00    
Series V Class B Stock
            
STOCKHOLDERS' EQUITY            
Preferred stock par value (in dollars per share)       $ 1 $ 1  
Preferred stock outstanding (in shares)       46,607 46,607  
Cumulative annual dividend payable quarterly (in dollars per share)       $ 0.32    
Preferred stock dividend in arrears       $ 929,000 $ 914,000  
Period after which stock is redeemable at the option of the entity       2 years    
Preferred stock redemption price (in dollars per share)       $ 4.40    
Number of shares of preferred stock converted into common stock       0 0  
Amount per share the holders of the preferred stock entitled to in voluntary or involuntary dissolution, liquidation or winding up of the Company (in dollars per share)       $ 4.40    
Preferred Stock Class C
            
STOCKHOLDERS' EQUITY            
Preferred stock authorized (in shares)       5,000,000    
Preferred stock par value (in dollars per share)       $ 1.00    
Common stock
            
STOCKHOLDERS' EQUITY            
Common stock authorized (in shares)       100,000,000    
Common stock no par value (in dollars per share)       $ 0.00 $ 0.00  
Common stock outstanding (in shares)       27,252,463 25,318,700  
Number of shares repurchased       67,102