Note 16 - Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Multiemployer Plan [Table Text Block]

			Pension Protection Act (“PPA”) Certified Zone Status (1)			Contributions
Pension Trust Fund	Pension Plan Employer Identification Number		2020	2019	FIP / RP Status Pending / Implemented (2)	2021		2020		2019		Surcharge Imposed	Expiration Date of Collective Bargaining Agreement (3)
Operating Engineers Pension Trust Fund		95-6032478	Yellow	Yellow	Yes	$	5,266	$	5,239	$	4,508	No	6/30/2022
Locals 302 and 612 IUOE-Employers Construction Industry Retirement Plan		91-6028571	Green	Green	No		336		263		5,479	No	5/31/2022 3/31/2023 5/31/2024
Pension Trust Fund for Operating Engineers Pension Plan		94-6090764	Yellow	Yellow	Yes		10,095		10,001		10,569	No	6/30/2022 3/31/2023 6/30/2023 9/30/2023 2/28/2024 6/30/2024 10/31/2024 3/31/2025
All other funds (54 as of December 31, 2021)							23,400		22,264		23,660
				Total contributions:		$	39,097	$	37,767	$	44,216