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CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (USD $)
Total
USD ($)
Subtotal
Class A
USD ($)
Class B
USD ($)
General Partnership
USD ($)
Treasury Units
Balance at Aug. 20, 2007            
Increase (Decrease) in Partners' Capital            
Stock Buyback $ (33,422,000)          
Stock Buyback (in units)         (117)  
Balance at Jun. 30, 2014 (24,473,197)       (244,204)  
Balance (in units) at Jun. 30, 2014 128,823 180,225     1,802  
Balance at Dec. 31, 2012 (22,515,677)   (18,017,082) (4,273,666) (224,929)  
Balance (in units) at Dec. 31, 2012 130,444 180,225 144,180 34,243 1,802 49,781
Increase (Decrease) in Partners' Capital            
Distribution to Partners (1,950,596)   (1,560,476) (370,614) (19,506)  
Stock Buyback (399,487)   (321,240) (74,335) (3,912)  
Stock Buyback (in units) (404)         404
Net Income 5,370,742   4,296,594 1,020,441 53,707  
Balance at Jun. 30, 2013 (19,495,018)   (15,602,204) (3,698,174) (194,640)  
Balance (in units) at Jun. 30, 2013 130,040 180,225 144,180 34,243 1,802 50,185
Balance at Dec. 31, 2013 (21,848,563)   (17,485,327) (4,145,076) (218,160)  
Balance (in units) at Dec. 31, 2013 129,487 180,225 144,180 34,243 1,802 50,738
Increase (Decrease) in Partners' Capital            
Distribution to Partners (1,935,384)   (1,548,307) (367,723) (19,354)  
Stock Buyback (941,477)   (757,246) (175,019) (9,212)  
Stock Buyback (in units) (664)     (126) (7) 664
Net Income 252,227   201,782 47,923 2,522  
Balance at Jun. 30, 2014 $ (24,473,197)   $ (19,589,098) $ (4,639,895) $ (244,204)  
Balance (in units) at Jun. 30, 2014 128,823 180,225 144,180 34,243 1,802 51,402