Note 7 - Contract Assets and Liabilities (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

(in thousands)	September 30, 2021		December 31, 2020		September 30, 2020
Costs in excess of billings and estimated earnings	$	61,815	$	39,300	$	39,623
Contract retention		142,231		125,639		120,316
Total contract assets	$	204,046	$	164,939	$	159,939

(in thousands)	September 30, 2021		December 31, 2020		September 30, 2020
Billings in excess of costs and estimated earnings, net of retention	$	166,091	$	143,623	$	168,383
Provisions for losses		29,176		27,698		21,047
Total contract liabilities	$	195,267	$	171,321	$	189,430