Discontinued Operations Cashflows from discontinued operations (Details) - USD ($)	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
Cashflows from discontinued operations [Abstract]
Net cash used in discontinued operating activities	$ (7,113,000)	$ (2,629,000)
Net cash provided by (used in) discontinued investing activities	17,026,000	(1,425,000)
Net cash (used in) provided by discontinued financing activities	$ (3,025,000)	$ 4,219,000