NET INCOME PER UNIT (Details) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2015	Oct. 31, 2014	Jan. 31, 2015
NET INCOME PER UNIT
Accrued income receivable	$ 355,567		$ 355,567		$ 558,385
Number of units outstanding	13,120,010	13,120,010	13,120,010	13,120,010