SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - shares	3 Months Ended		6 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2021	Jul. 31, 2020
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Number of units outstanding	13,120,010	13,120,010	13,120,010	13,120,010