Annual report pursuant to Section 13 and 15(d)

Note 7 - Long-term Debt (Details Textual)

v3.19.1
Note 7 - Long-term Debt (Details Textual)
$ / shares in Units, € in Millions
9 Months Ended 11 Months Ended 12 Months Ended
Sep. 28, 2018
USD ($)
Sep. 26, 2018
USD ($)
May 02, 2018
USD ($)
$ / shares
shares
Feb. 08, 2018
USD ($)
Nov. 03, 2017
USD ($)
Apr. 28, 2017
USD ($)
Dec. 12, 2016
USD ($)
Dec. 31, 2017
USD ($)
Dec. 12, 2016
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2018
EUR (€)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2016
EUR (€)
Oct. 31, 2018
USD ($)
Sep. 30, 2018
$ / shares
Jul. 05, 2018
USD ($)
Mar. 31, 2017
USD ($)
May 24, 2016
EUR (€)
Apr. 21, 2016
EUR (€)
Dec. 01, 2015
USD ($)
Aug. 03, 2015
USD ($)
Debt Instrument, Increase (Decrease), Net, Total   $ 30,100,000               $ 1,000,000                        
Gain (Loss) on Extinguishment of Debt, Total                   (638,000)                    
Debt Instrument, Unamortized Discount, Total               $ 27,373,000   32,005,000   27,373,000                    
Repayments of Long-term Debt, Total                   49,405,000   11,926,000 27,152,000                  
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt               $ 41,186,000   106,640,000   $ 41,186,000                    
Long-term Debt Obligation [Member]                                            
Letters of Credit Outstanding, Amount                   $ 2,800,000                        
Falcon Global [Member]                                            
Business Acquisition, Percentage of Voting Interests Acquired                                   100.00%        
Sea-Cat Crewzer II [Member]                                            
Business Acquisition, Percentage of Voting Interests Acquired           100.00%                                
Equity Method Investment, Ownership Percentage           50.00%                                
Payments to Acquire Businesses, Gross           $ 11,300,000                                
Sea-Cat Crewzer [Member]                                            
Debt Instrument, Interest Rate, Stated Percentage               1.52%       1.52%                    
Payments of Debt Issuance Costs                       $ 100,000                    
Business Acquisition, Percentage of Voting Interests Acquired           100.00%                                
Equity Method Investment, Ownership Percentage           50.00%                                
Debt Instrument, Final Baloon Payment               $ 15,300,000       $ 15,300,000                    
Payments to Acquire Businesses, Gross           $ 4,400,000                                
C-Lift [Member]                                            
Business Acquisition, Percentage of Voting Interests Acquired               50.00%       50.00%                    
Cypress CKOR LLC [Member]                                            
Equity Method Investment, Ownership Percentage             100.00%   100.00%                          
Payments to Acquire Businesses, Gross             $ 1                              
Minimum [Member] | Sea-Cat Crewzer [Member]                                            
Debt Instrument, Basis Spread on Variable Rate                       2.10%                    
Maximum [Member] | Sea-Cat Crewzer [Member]                                            
Debt Instrument, Basis Spread on Variable Rate                       2.75%                    
Falcon Global Holdings [Member]                                            
Noncontrolling Interest, Ownership Percentage by Parent       72.00%           72.00%                        
Business Acquisition, Percentage of Voting Interests Acquired           100.00%                                
Falcon Global USA LLC [Member]                                            
Payments for Debtor-in-possession Obligations       $ 15,000,000                                    
Convertible Senior Notes Converted to Warrants [Member] | Carlyle Group [Member]                                            
Debt Instrument, Convertible, Conversion Ratio     37.73                                      
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares     $ 0.01                                      
Debt Conversion, Original Debt, Amount     $ 50,000,000                                      
Debt Conversion, Converted Instrument, Shares Issued | shares     1,886,792                                      
Debt Instrument, Convertible, Conversion Price | $ / shares     $ 26.50                                      
Conversion Revolving Credit Facility from Windcat Workboats [Member]                                            
Debt Conversion, Original Debt, Amount | €                     € 6.0                      
Carlyle Warrants [Member]                                            
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares                               $ 0.01            
Warrants and Rights Outstanding, Term     25 years                                      
Loan Facility With DNB Bank ASA [Member]                                            
Line of Credit Facility, Maximum Borrowing Capacity   $ 130,000,000                                        
Debt Instrument, Interest Rate, Effective Percentage   6.5625%                                        
Debt Instrument, Periodic Payment, Principal   $ 3,300,000                                        
Loan Facility With DNB Bank ASA [Member] | Interest Rate Swap [Member]                                            
Derivative, Notional Amount                             $ 65,000,000              
Other DNB Credit Facilities [Member]                                            
Repayments of Lines of Credit   101,300,000                                        
Long-term Debt, Total   99,900,000                                        
Interest Payable   1,400,000                                        
Gain (Loss) on Extinguishment of Debt, Total   $ 600,000                                        
Convertible Senior Notes 3.75% [Member]                                            
Convertible Debt, Total     $ 125,000,000                                   $ 175,000,000  
Debt Instrument, Interest Rate, Stated Percentage     4.25%                                   3.75%  
Debt Instrument, Convertible, Conversion Ratio                   23.26 23.26                      
Three Point Seven Five Percentage Convertible Notes [Member]                                            
Debt Instrument, Interest Rate, Effective Percentage                   7.95%                        
Embedded Derivative, Fair Value of Embedded Derivative Liability                                         $ 27,300,000  
FGUSA Credit Facility [Member]                                            
Debt Agreement, Maximum Borrowing Capacity       131,100,000                                    
Debt Instrument, Unamortized Discount, Total       10,000,000                                    
FGUSA Credit Facility [Member] | Revolving Credit Facility [Member]                                            
Line of Credit Facility, Maximum Borrowing Capacity       15,000,000                                    
Debt Instrument, Interest Rate, Effective Percentage                   7.0625%                        
Debt Instrument, Unamortized Discount, Total       500,000                                    
Proceeds from Lines of Credit, Total                   $ 15,000,000                        
FGUSA Credit Facility [Member] | Term Loan [Member]                                            
Long-term Debt, Total       116,100,000                                    
Debt Instrument, Periodic Payment, Principal                   7,000,000                        
Debt Instrument, Unamortized Discount, Total       $ 9,500,000                                    
Sea-Cat Crewzer III [Member]                                            
Debt Instrument, Interest Rate, Effective Percentage               2.76%       2.76%                    
Debt Instrument, Face Amount | €                                       € 27.6    
Proceeds from Issuance of Debt                       $ 7,100,000 22,800,000                  
Debt Issuance Costs, Gross                         2,700,000                  
Repayments of Long-term Debt, Total                   3,100,000   600,000                    
Windcat Workboats Ltd. [Member]                                            
Line of Credit Facility, Maximum Borrowing Capacity | €                                     € 25.0      
Proceeds from Lines of Credit, Total                         23,500,000 € 21.0                
Debt Issuance Costs, Gross                         600,000                  
Repayments of Long-term Debt, Total                         $ 22,900,000                  
Windcat Workboats Ltd. [Member] | Minimum [Member]                                            
Debt Instrument, Basis Spread on Variable Rate                         3.00% 3.00%                
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage                         1.20% 1.20%                
Windcat Workboats Ltd. [Member] | Maximum [Member]                                            
Debt Instrument, Basis Spread on Variable Rate                         3.30% 3.30%                
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage                         1.32% 1.32%                
Euro Debt [Member]                                            
Repayments of Long-term Debt, Total                   7,500,000                        
Pound Sterling Debt [Member]                                            
Proceeds from Issuance of Long-term Debt, Total                   $ 8,500,000                        
Term Loan to Acquire Two Vessels [Member]                                            
Debt Instrument, Interest Rate, Effective Percentage                                 5.9375%          
Debt Instrument, Face Amount                                 $ 11,000,000          
Term Loan to Acquire Two Vessels [Member] | Interest Rate Swap [Member]                                            
Derivative, Notional Amount                             $ 5,500,000              
BNDES [Member]                                            
Debt Instrument, Interest Rate, Effective Percentage                   4.00%                        
Repayments of Long-term Debt, Total                   $ 2,000,000   $ 2,000,000 $ 2,000,000                  
Tranche A [Member] | Falcon Global [Member]                                            
Debt Instrument, Face Amount                                           $ 62,500,000
Tranche B [Member] | Falcon Global [Member]                                            
Debt Instrument, Face Amount                                           $ 18,000,000
Falcon Global [Member]                                            
Debt Issuance Costs, Gross                                   $ 1,000,000        
Repayments of Long-term Debt, Total $ 51,900,000             $ 4,400,000   3,000,000                        
Payments of Debt Issuance Costs         $ 200,000                                  
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt                                   $ 58,300,000        
Sea-Cat Crewzer II [Member]                                            
Debt Instrument, Interest Rate, Effective Percentage               5.64%       5.64%                    
Debt Instrument, Interest Rate, Stated Percentage               1.52%       1.52%                    
Repayments of Long-term Debt, Total 19,100,000                 1,800,000   $ 1,200,000                    
Payments of Debt Issuance Costs                       100,000                    
Debt Instrument, Final Baloon Payment               $ 17,300,000       $ 17,300,000                    
Sea-Cat Crewzer II [Member] | Minimum [Member]                                            
Debt Instrument, Basis Spread on Variable Rate                       2.10%                    
Sea-Cat Crewzer II [Member] | Maximum [Member]                                            
Debt Instrument, Basis Spread on Variable Rate                       2.75%                    
Sea-Cat Crewzer [Member]                                            
Debt Instrument, Interest Rate, Effective Percentage               5.64%       5.64%                    
Repayments of Long-term Debt, Total 16,900,000                 1,600,000   $ 1,100,000                    
C-Lift [Member]                                            
Repayments of Long-term Debt, Total $ 12,000,000                 4,000,000   1,500,000 $ 1,700,000                  
Payments of Debt Issuance Costs                       100,000                    
Cypress CKOR LLC [Member]                                            
Repayments of Long-term Debt, Total                 $ 600,000 $ 1,300,000   $ 1,200,000                    
Secured Long-term Debt, Noncurrent             $ 3,100,000   $ 3,100,000