Property and Equipment (Tables)

6 Months Ended

Jun. 30, 2022

Property, Plant and Equipment [Abstract]

Summary of property and equipment

	June 30,		December 31,
	2022		2021
Automobiles and trucks	$	2,306	$	2,337
Building and improvements		35,108		34,796
Construction equipment		136,913		137,786
Vessels and other equipment		85,021		82,455
Office equipment		6,660		6,430
		266,008		263,804
Less: Accumulated depreciation		(198,524)		(191,542)
Net book value of depreciable assets		67,484		72,262
Construction in progress		8,938		6,507
Land		27,885		27,885
	$	104,307	$	106,654