Note 5 - Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands		Apr. 30, 2017	Jan. 31, 2017
Amortizable intangible assets
Amortizable intangible assets, gross		$ 3,257	$ 3,236
Less: accumulated amortization		(3,004)	(2,821)
Net amortizable intangible assets		253	415
Customer Relationships [Member]
Amortizable intangible assets
Amortizable intangible assets, gross	[1]	2,742	2,721
Trade Names [Member]
Amortizable intangible assets
Amortizable intangible assets, gross		$ 515	$ 515

[1] Customer relationships include the impact of foreign currency translation.