Note 11 - Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Schedule of Dividends Payable [Table Text Block]

Record Date	Payment Date	Per Share Amount		Dividend Payment
				(in thousands)
Fiscal Year 2020
March 3, 2020	March 19, 2020	$	0.095	$	1,917
Fiscal Year 2019
March 22, 2019	April 5, 2019	$	0.085	$	1,672
May 22, 2019	June 5, 2019	$	0.085	$	1,672
August 21, 2019	September 5, 2019	$	0.085	$	1,691
November 20, 2019	December 5, 2019	$	0.085	$	1,701