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ACCOUNTS RECEIVABLE, NET (Schedule of Accounts Receivable, Net) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Accounts Receivable, Net [Abstract]        
Billed receivable $ 3,117 $ 13,356    
Unbilled receivable 8,067 14,636    
Accounts receivable, gross 11,184 27,992    
Less: Allowance for doubtful accounts (1,727) (4,458) $ (1,433) $ (362)
Accounts receivable, net $ 9,457 $ 23,534