Note 4 - Stockholders' Equity (Tables)

12 Months Ended

Jan. 31, 2017

Notes Tables

Dividends Declared [Table Text Block]

Declaration Date	Record Date	Payable	Dividend Class A		Dividend Class B		Amount
12/13/2016	12/27/2016	1/5/2017	$	0.072	$	0.06	$	1,331,000
9/14/2016	9/28/2016	10/5/2016	$	0.072	$	0.06	$	1,328,000
6/14/2016	6/28/2016	7/7/2016	$	0.072	$	0.06	$	1,326,000
4/12/2016	4/26/2016	5/3/2016	$	0.072	$	0.06	$	1,316,000