Segment Information (Tables)

3 Months Ended

Mar. 31, 2022

Segment Reporting [Abstract]

Schedule of segment reporting

	Three months ended
	March 31,
		2022		2021
Marine
Contract revenues	$	84,480	$	72,146
Operating income	$	1,840	$	2,848
Depreciation and amortization expense	$	(4,323)	$	(4,358)
Total assets	$	173,577	$	268,345
Property and equipment, net	$	92,725	$	106,071
Concrete
Contract revenues	$	90,451	$	81,163
Operating loss	$	(4,695)	$	(793)
Depreciation and amortization expense	$	(1,940)	$	(2,127)
Total assets	$	167,299	$	126,510
Property and equipment, net	$	12,249	$	14,808