Note 1 - Summary of Business and Significant Accounting Policies - Intangible Assets (Details) - USD ($) $ in Thousands		Jan. 31, 2017	Jan. 31, 2016
Amortizable intangible assets
Amortizable intangible assets, gross		$ 3,236	$ 3,264
Less: accumulated amortization		(2,821)	(2,191)
		415	1,073
Customer Relationships [Member]
Amortizable intangible assets
Amortizable intangible assets, gross	[1]	2,721	2,749
Trade Names [Member]
Amortizable intangible assets
Amortizable intangible assets, gross		$ 515	$ 515

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