ACCOUNTS RECEIVABLE (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Less:
Allowance for sales returns and rebates	$ 8,583	$ 9,510	$ 12,519	$ 19,460
Accounts receivable, net	58,807	54,655
Trade Accounts Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	68,033	65,347
Less:
Allowance for doubtful accounts	(643)	(1,182)
Allowance for sales returns and rebates	$ (8,583)	$ (9,510)