OTHER INCOME (Details) (USD $)	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011
OTHER INCOME [Abstract]
Interest income	$ 125,280	$ 179,602	$ 221,972
Other miscellaneous income	28,796	254,605	140,074
Total other income	$ 154,076	$ 434,207	$ 362,046