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Long-Term Loans, Related Party (Details) - USD ($)
12 Months Ended
Dec. 28, 2017
Jan. 24, 2017
Oct. 13, 2016
Feb. 17, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Nov. 17, 2010
Debt Instrument [Line Items]                
Long-term Debt         $ 469,736,000 $ 0    
Converted instrument, shares issued (in shares)       1,332,058        
Interest expense         $ 19,269,000 $ 524,000 $ 2,643,000  
Common Stock, Shares, Issued         32,560,000 31,156,000    
Bridge Loan                
Debt Instrument [Line Items]                
Principal amount of promissory note               $ 35,000,000
Long-term Debt           $ 17,400,000    
Interest expense           $ 178,000 $ 1,300,000  
Kien Huat Montreign Loan [Member]                
Debt Instrument [Line Items]                
Long-term Debt $ 36,200,000.0              
Exchange rate (usd per share)         $ 26.21      
Kien Huat Montreign Loan [Member] | Montreign Operating [Member]                
Debt Instrument [Line Items]                
Principal amount of promissory note   $ 32,300,000.0            
Kien Huat Montreign Loan [Member] | Construction Loans [Member] | Montreign Operating [Member]                
Debt Instrument [Line Items]                
Stated percentage   12.00%            
Commitment fee   1.00%            
Kien Huat Note Exchange Agreement [Member]                
Debt Instrument [Line Items]                
Common Stock, Shares, Issued 1,379,873              
Kien Huat Backstop Loan [Member]                
Debt Instrument [Line Items]                
Stated percentage 12.00%              
Line of Credit Facility, Commitment Fee Amount $ 200,000              
Maximum borrowing capacity $ 20,000,000              
KH Construction Loan Agreement [Member]                
Debt Instrument [Line Items]                
Principal amount of promissory note     $ 50,000,000          
KH Construction Loan Agreement [Member] | Montreign [Member]                
Debt Instrument [Line Items]                
Debt Related Commitment Fees and Debt Issuance Costs     $ 500,000