COMPONENTS OF THE COMPANY'S CONSOLIDATED BALANCE SHEETS Components of Consolidated Balanec Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Accounts Receivable
Accounts receivable trade	$ 54,055	$ 58,718
Accrued ship and debit	(40,118)	(39,486)
Allowance for stock rotation and rebate	(2,159)	(1,700)
Allowance for doubtful accounts	(706)	(734)
Total	11,072	16,798
Inventory, Net [Abstract]
Raw materials	41,138	15,517
Work-in-process	15,612	16,765
Finished goods	24,107	24,805
Total	80,857	57,087
Prepaid Expense and Other Assets, Current [Abstract]
Prepaid income tax	3,081	460
Prepaid legal fees	181	213
Prepaid maintenance agreements	2,047	856
Advance to suppliers	2,157	1,211
Interest receivable	595	1,195
Other	3,854	3,823
Total	$ 11,915	$ 7,758

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Prepaid Legal Fees

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Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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