Note 4 - Investments in Privately-held Companies (Tables)

3 Months Ended

Apr. 30, 2016

Notes Tables

Schedule of Equity Investments in and Financing Notes Receivable from Privately Held Companies [Table Text Block]

I nvestments	April 30 , 201 6		January 30 , 201 6
Issuer A	$	2,000	$	2,000
Issuer B		450		750
Issuer C		136		134
Total investments	$	2,586	$	2,884