Note 12 - Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

Schedule of Dividends Payable [Table Text Block]

Record Date	Payment Date	Per Share Amount		Dividend Payment
				(in thousands)
Fiscal Year 2021
March 9, 2021	March 25, 2021	$	0.110	$	2,262
Fiscal Year 2020
March 3, 2020	March 19, 2020	$	0.095	$	1,917
May 20, 2020	June 4, 2020	$	0.095	$	1,917
August 27, 2020	September 10, 2020	$	0.095	$	1,925
November 19, 2020	December 3, 2020	$	0.095	$	1,936