XML 59 R47.htm IDEA: XBRL DOCUMENT v3.10.0.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Allowance for doubtful account $ 4,208 $ 608
Major Customer Far East Region [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Allowance for doubtful account $ 3,000