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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
ASSETS |  |
Accounts Receivable, net | $ 149,142 | $ 132,699
Inventories, net | 93,767 | 68,567
LIABILITIES AND SHAREHOLDERS' EQUITY |  |
Accrued Liabilities | 24,863 | 22,001
Accumulated surplus | $ 81,354 | 55,580
ASU 2014-09 | Cumulative Effect Adjustment |  |
ASSETS |  |
Accounts Receivable, net |  | (2,496)
Inventories, net |  | 1,996
LIABILITIES AND SHAREHOLDERS' EQUITY |  |
Accrued Liabilities |  | (176)
Accumulated surplus |  | (324)
ASU 2014-09 | Balance at January 1, 2018 |  |
ASSETS |  |
Accounts Receivable, net |  | 130,203
Inventories, net |  | 70,563
LIABILITIES AND SHAREHOLDERS' EQUITY |  |
Accrued Liabilities |  | 21,825
Accumulated surplus |  | $ 55,256

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