Loss on Disposal of Subsidiaries (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2014
Loss on Disposal of Subsidiaries [Abstract]
Business Exit Costs	$ 154	$ 0	$ 517	$ 0