Segment Information (Tables)

6 Months Ended

Jun. 30, 2022

Segment Reporting [Abstract]

Schedule of segment reporting

	Three months ended				Six months ended
	June 30,				June 30,
		2022		2021		2022		2021
Marine
Contract revenues	$	82,319	$	63,942	$	166,799	$	136,088
Operating income	$	2,516	$	8,606	$	4,356	$	11,454
Depreciation and amortization expense	$	(4,236)	$	(4,322)	$	(8,559)	$	(8,680)
Total assets	$	219,138	$	253,658	$	219,138	$	253,658
Property and equipment, net	$	92,813	$	90,961	$	92,813	$	90,961
Concrete
Contract revenues	$	112,256	$	81,933	$	202,707	$	163,096
Operating loss	$	(5,364)	$	(3,040)	$	(10,059)	$	(3,833)
Depreciation and amortization expense	$	(1,862)	$	(2,107)	$	(3,802)	$	(4,235)
Total assets	$	132,344	$	129,547	$	132,344	$	129,547
Property and equipment, net	$	11,494	$	13,956	$	11,494	$	13,956