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ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details 2) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Other current liabilities    
Unfunded cash account balances $ 5,900 $ 7,137
Other 3,514 11,924
Total $ 9,414 $ 19,061