Note 4 - Stockholders' Equity (Tables)

12 Months Ended

Jan. 31, 2018

Notes Tables

Dividends Declared [Table Text Block]

Declaration Date	Record Date	Payable	Dividend Class A		Dividend Class B		(in thousands)
12 /12/2017	12/26/2017	1/4/2018	$	0.072	$	0.06	$	1,346
9/12/2017	9/26/2017	10/3/2017	$	0.072	$	0.06	$	1,346
6/13/2017	6/27/2017	7/6/2017	$	0.072	$	0.06	$	1,344
4/11/2017	4/25/2017	5/2/2017	$	0.072	$	0.06	$	1,331