NET INCOME PER UNIT (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2014	Jan. 31, 2015
NET INCOME PER UNIT
Accrued income receivable	$ 767,918		$ 767,918		$ 558,385
Number of units outstanding	13,120,010	13,120,010	13,120,010	13,120,010