| Summarized Segment Financial Information | 
Summarized financial information concerning our segments as of and for the three months ended March 31, 2016 and 2015 is as follows (in thousands): 
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   | 
Three Months Ended March 31, 2016  | 
 
   | 
Fabrication  | 
Shipyards  | 
Services  | 
Corp. & Eliminations  | 
Consolidated  | 
 
Revenue  | 
$  | 
23,829  | 
 
  | 
$  | 
34,120  | 
 
  | 
$  | 
26,559  | 
 
  | 
$  | 
(529  | 
)  | 
$  | 
83,979  | 
 
  | 
 
Gross profit  | 
41  | 
 
  | 
2,329  | 
 
  | 
3,331  | 
 
  | 
—  | 
 
  | 
5,701  | 
 
  | 
 
Operating income (loss)  | 
(1,282  | 
)  | 
523  | 
 
  | 
2,095  | 
 
  | 
(120  | 
)  | 
1,216  | 
 
  | 
 
   | 
   | 
   | 
   | 
   | 
   | 
 
Total assets  | 
293,049  | 
 
  | 
85,638  | 
 
  | 
93,283  | 
 
  | 
(132,802  | 
)  | 
339,168  | 
 
  | 
 
Depreciation expense  | 
4,855  | 
 
  | 
1,166  | 
 
  | 
442  | 
 
  | 
104  | 
 
  | 
6,567  | 
 
  | 
 
CAPEX  | 
(109  | 
)  | 
(35  | 
)  | 
(543  | 
)  | 
(37  | 
)  | 
(724  | 
)  | 
 
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   | 
Three Months Ended March 31, 2015  | 
 
   | 
Fabrication  | 
Shipyards  | 
Services  | 
Corp. & Eliminations  | 
Consolidated  | 
 
Revenue  | 
$  | 
56,933  | 
 
  | 
$  | 
19,481  | 
 
  | 
$  | 
24,788  | 
 
  | 
$  | 
(1,969  | 
)  | 
$  | 
99,233  | 
 
  | 
 
Gross profit (loss)  | 
(256  | 
)  | 
2,441  | 
 
  | 
2,263  | 
 
  | 
—  | 
 
  | 
4,448  | 
 
  | 
 
Operating income (loss)  | 
(2,950  | 
)  | 
2,010  | 
 
  | 
1,278  | 
 
  | 
(183  | 
)  | 
155  | 
 
  | 
 
   | 
   | 
   | 
   | 
   | 
   | 
 
Total assets  | 
377,579  | 
 
  | 
61,411  | 
 
  | 
87,305  | 
 
  | 
(153,378  | 
)  | 
372,917  | 
 
  | 
 
Depreciation expense  | 
5,560  | 
 
  | 
479  | 
 
  | 
430  | 
 
  | 
130  | 
 
  | 
6,599  | 
 
  | 
 
CAPEX  | 
(480  | 
)  | 
(92  | 
)  | 
(429  | 
)  | 
—  | 
 
  | 
(1,001  | 
)  | 
 
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