Segment Information (Tables)

3 Months Ended

Mar. 31, 2025

Segment Reporting [Abstract]

Schedule of segment reporting

	Three months ended March 31,
	2025				2024
	Amount		Percent		Amount		Percent
Marine	(dollar amounts in thousands)
Contract revenues	$	127,163	100.0	%	$	106,325	100.0	%
Cost of contract revenues		108,638	85.4	%		100,120	94.2	%
Gross profit		18,525	14.6	%		6,205	5.8	%
Selling, general and administrative expenses		13,918	10.9	%		11,155	10.5	%
Gain on disposal of assets, net		(171)	(0.1)	%		(84)	(0.1)	%
Operating income (loss)	$	4,778	3.8	%	$	(4,866)	(4.6)	%
Total assets	$	322,937			$	275,969
Property and equipment, net	$	87,665			$	80,261
Depreciation and amortization	$	4,531			$	4,930
Capital expenditures	$	8,971			$	1,507
Concrete
Contract revenues	$	61,490	100.0	%	$	54,347	100.0	%
Cost of contract revenues		57,000	92.7	%		45,014	82.8	%
Gross profit		4,490	7.3	%		9,333	17.2	%
Selling, general and administrative expenses		8,627	14.0	%		7,844	14.5	%
Gain on disposal of assets, net		(192)	(0.3)	%		(253)	(0.5)	%
Operating (loss) income	$	(3,945)	(6.4)	%	$	1,742	3.2	%
Total assets	$	93,373			$	87,615
Property and equipment, net	$	4,291			$	5,212
Depreciation and amortization	$	872			$	1,089
Capital expenditures	$	62			$	346