Segment Information (Tables)

9 Months Ended

Sep. 30, 2023

Segment Reporting [Abstract]

Schedule of segment reporting

	Three months ended				Nine months ended
	September 30,				September 30,
		2023		2022		2023		2022
Marine
Contract revenues	$	80,913	$	76,098	$	260,754	$	242,897
Operating income (loss)	$	2,001	$	5,197	$	(587)	$	9,553
Depreciation and amortization expense	$	(4,771)	$	(4,192)	$	(12,418)	$	(12,751)
Total assets	$	269,409	$	219,955	$	269,409	$	219,955
Property and equipment, net	$	82,914	$	91,338	$	82,914	$	91,338
Concrete
Contract revenues	$	87,563	$	106,523	$	249,430	$	309,230
Operating income (loss)	$	560	$	(4,066)	$	(5,456)	$	(14,125)
Depreciation and amortization expense	$	(1,322)	$	(1,873)	$	(4,464)	$	(5,675)
Total assets	$	110,813	$	128,201	$	110,813	$	128,201
Property and equipment, net	$	6,671	$	10,436	$	6,671	$	10,436