Property, Equipment and Leasehold Improvements (Tables)

12 Months Ended

Dec. 31, 2021

Property Plant And Equipment [Abstract]

Property, Equipment and Leasehold Improvements

	Fiscal Years
(In thousands)	2021		2020
Property:
Land	$	18,339	$	18,339
Buildings		64,854		62,324
Construction in progress		526		650
Equipment:
Machinery and equipment		50,835		48,728
Office furniture and equipment		10,126		10,500
Leasehold improvements		13,687		13,201
		158,367		153,742
Less accumulated depreciation and amortization		98,396		93,919
Property, equipment and leasehold improvements, net	$	59,971	$	59,823