Summary of Significant Accounting Policies Goodwill (Details) (USD $)	12 Months Ended
	Jan. 31, 2015	Jan. 31, 2014
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 39,736,000	$ 39,764,000
Goodwill, Translation Adjustments	(900,000)	(28,000)
Goodwill, ending balance	38,836,000	39,736,000
Americas [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	12,355,000	12,368,000
Goodwill, Translation Adjustments	(94,000)	(13,000)
Goodwill, ending balance	12,261,000	12,355,000
Asia-Pacific [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	278,000	280,000
Goodwill, Translation Adjustments	5,000	(2,000)
Goodwill, ending balance	283,000	278,000
Japan [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	1,097,000	1,103,000
Goodwill, Translation Adjustments	(33,000)	(6,000)
Goodwill, ending balance	1,064,000	1,097,000
Europe [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	1,106,000	1,108,000
Goodwill, Translation Adjustments	(27,000)	(2,000)
Goodwill, ending balance	1,079,000	1,106,000
Other [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	24,900,000	24,905,000
Goodwill, Translation Adjustments	(751,000)	(5,000)
Goodwill, ending balance	$ 24,149,000	$ 24,900,000