Investment (Summarized Information as to Assets, Liabilities and Results of Operations) (Details) (ModusLink Global Solutions, Inc., USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended	12 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2013	Oct. 31, 2014	Jul. 31, 2014
ModusLink Global Solutions, Inc.
Schedule of Equity Method Investments [Line Items]
Current assets	$ 407,796			$ 407,796	$ 405,768
Non-current assets	43,004			43,004	45,878
Current liabilities	198,934			198,934	198,594
Non-current liabilities	82,610			82,610	81,434
Stockholders' equity	169,256			169,256	171,618
Net revenue	187,444	191,415	545,432	719,429
Gross profit	18,838	21,995	57,463	71,568
Income (loss) from continuing operations	222	538	(16,544)	(16,678)
Net income (loss)	$ 222	$ 617	$ (16,530)	$ (16,677)