CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (USD $)	Subtotal	Class A USD ($)	Class B USD ($)	General Partnership USD ($)	Treasury Units	Total USD ($)
Balance at Dec. 31, 2013		$ (17,485,327)	$ (4,145,076)	$ (218,160)		$ (21,848,563)
Balance (in units) at Dec. 31, 2013	180,225	144,180	34,243	1,802	50,738	129,487
Increase (Decrease) in Partners' Capital
Distribution to Partners		(775,366)	(184,149)	(9,692)		(969,207)
Stock Buyback		(305,230)	(70,470)	(3,709)		(379,409)
Stock Buyback (in units)					271	(271)
Net income (loss)		(23,691)	(5,627)	(296)		(29,614)
Balance at Mar. 31, 2014		(18,589,614)	(4,405,322)	(231,857)		(23,226,793)
Balance (in units) at Mar. 31, 2014	180,225	144,180	34,243	1,802	51,009	129,216
Balance at Dec. 31, 2014		(21,910,488)	(5,184,335)	(272,859)		(27,367,682)
Balance (in units) at Dec. 31, 2014	180,225	144,180	34,243	1,802	52,572	127,653
Increase (Decrease) in Partners' Capital
Distribution to Partners		(761,064)	(180,753)	(9,513)		(951,330)
Stock Buyback		(975,731)	(230,574)	(12,135)		(1,218,440)
Stock Buyback (in units)			(154)	(8)	809	(809)
Net income (loss)		327,726	77,835	4,097		409,658
Balance at Mar. 31, 2015		$ (23,319,557)	$ (5,517,827)	$ (290,410)		$ (29,127,794)
Balance (in units) at Mar. 31, 2015	180,225	144,180	34,243	1,802	53,381	126,844