Restructuring Costs (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2014	Jan. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Activities, Initiation Date			Mar. 10, 2015
Restructuring costs unpaid			$ 0
Severance Costs	$ 111,000		588,000
Restructuring and Related Cost, Incurred Cost		$ 0		$ 0
Impairment charges related to exit activity	0		0
Gain (Loss) on Disposition of Assets	247,000		611,000
Receivable from sale of business	830,000	$ 0	830,000	$ 0	$ 0
Applied Technology Division [Member]
Restructuring Cost and Reserve [Line Items]
Gain (Loss) on Disposition of Assets	247,000		611,000
Receivable from sale of business	$ 827,000		827,000
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs			407,000
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs			$ 181,000