Segment Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule of Segment Reporting

Segment information for the periods presented is provided as follows:

	Three months ended March 31, 2018			Three months ended March 31, 2017
Marine
Contract revenues	$	62,791		$	67,180
Operating income (loss)	6,265			(7,707		)
Depreciation and amortization expense	(4,731		)	(5,255		)
Total Assets	$	255,484		$	261,176
Property, Plant and Equipment, net	127,078			139,221
Concrete
Contract revenues	$	74,052		$	71,577
Operating income	804			6,225
Depreciation and amortization expense	(2,049		)	(2,273		)
Total Assets	$	166,949		$	170,262
Property, Plant and Equipment, net	17,790			14,695