Other assets

3 Months Ended

Apr. 30, 2012

Other Assets [Abstract]

Other Assets Disclosure [Text Block]

Other assets. The $1.4 million decrease in other assets for the period related to deposits applied to the purchase of fixed assets by the new facility in Saudi Arabia.

	April 30, 2012		January 31, 2012
Other assets		$2,424		$3,860