Property and Equipment (Tables)

3 Months Ended

Mar. 31, 2023

Property, Plant and Equipment [Abstract]

Summary of property and equipment

	March 31,		December 31,
	2023		2022
Automobiles and trucks	$	2,243	$	2,232
Building and improvements		36,953		36,952
Construction equipment		129,883		130,660
Vessels and other equipment		89,946		91,495
Office equipment		6,885		6,885
		265,910		268,224
Less: Accumulated depreciation		(198,058)		(195,948)
Net book value of depreciable assets		67,852		72,276
Construction in progress		1,570		816
Land		27,885		27,885
	$	97,307	$	100,977