Quarterly report pursuant to Section 13 or 15(d)

Segment Disclosures - Summarized Segment Financial Information (Details)

v3.19.1
Segment Disclosures - Summarized Segment Financial Information (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Segment Reporting Information [Line Items]      
Revenue $ 67,605 $ 57,290  
Gross profit (loss) 553 679  
Operating income (loss) (3,282) (5,090)  
Depreciation expense 2,552 2,715  
Capital expenditures 250 71  
Total assets 258,715 269,122 $ 258,290
Corporate      
Segment Reporting Information [Line Items]      
Revenue (1,215) (488)  
Gross profit (loss) (136) (385)  
Operating income (loss) (2,127) (2,511)  
Depreciation expense 102 104  
Capital expenditures 0 0  
Total assets 56,945 8,327  
Fabrication | Operating Segments      
Segment Reporting Information [Line Items]      
Revenue 12,631 17,343  
Gross profit (loss) (772) (527)  
Operating income (loss) (1,540) (2,506)  
Depreciation expense 967 1,149  
Capital expenditures 14 0  
Total assets 63,761 149,116  
Shipyard | Operating Segments      
Segment Reporting Information [Line Items]      
Revenue 36,587 18,565  
Gross profit (loss) (280) (1,023)  
Operating income (loss) (904) (1,979)  
Depreciation expense 1,109 1,069  
Capital expenditures 22 6  
Total assets 103,703 76,150  
Services | Operating Segments      
Segment Reporting Information [Line Items]      
Revenue 19,602 21,870  
Gross profit (loss) 1,741 2,614  
Operating income (loss) 1,289 1,906  
Depreciation expense 374 393  
Capital expenditures 214 65  
Total assets $ 34,306 $ 35,529