Quarterly report [Sections 13 or 15(d)]

Organization and Summary of Significant Accounting Policies - Additional Information (Details)

v3.25.1
Organization and Summary of Significant Accounting Policies - Additional Information (Details)
3 Months Ended
Mar. 31, 2025
USD ($)
Segment
Mar. 31, 2024
USD ($)
Dec. 31, 2024
USD ($)
Significant Accounting Policies [Line Items]      
Number of operating segments | Segment 2    
Number of corporate non-operating segments | Segment 1    
Gain (loss) on sale of assets $ (8,000) $ 3,241,000  
Prepaid contract costs 0   $ 0
Federal Income Tax Expense (Benefit), Continuing Operations 0 $ 0  
Fabrication Division      
Significant Accounting Policies [Line Items]      
Gain on sales of excess equipment 8,500,000    
Fabrication Division | Houma Facilities      
Significant Accounting Policies [Line Items]      
Gain (loss) on sale of assets $ 2,900,000    
Minimum      
Significant Accounting Policies [Line Items]      
Property, plant and equipment, useful life 3 years    
Maximum      
Significant Accounting Policies [Line Items]      
Property, plant and equipment, useful life 25 years    
LC Facility      
Significant Accounting Policies [Line Items]      
Restricted cash $ 1,200,000   $ 1,200,000
LC Facility | Balance Sheet Date Classified as Current      
Significant Accounting Policies [Line Items]      
Maturity date, description maturity dates of twelve months or less from the balance sheet date classified as current    
LC Facility | Balance Sheet Date Classified as Noncurrent      
Significant Accounting Policies [Line Items]      
Maturity date, description maturity dates of longer than twelve months from the balance sheet date classified as noncurrent