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COMPONENTS OF THE COMPANY'S CONDENSED CONSOLIDATED BALANCE SHEETS (Tables) | 3 Months Ended
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Mar. 31, 2020
Balance Sheet Related Disclosures [Abstract] |
Schedule of Accounts Receivable | Accounts Receivable
(In thousands) | March 31, 2020 |  | December 31, 2019
Accounts receivable trade | $ | 64,232 |  |  | $ | 61,036 |
Allowance for ship and debit | (40,332 | ) |  | (33,475 | )
Allowance for stock rotation and rebate | (2,694 | ) |  | (2,524 | )
Allowance for credit losses | (609 | ) |  | (763 | )
Total | $ | 20,597 |  |  | $ | 24,274 |
Accounts Receivable, Allowance for Credit Loss [Table Text Block] | The Company maintains an allowance for estimated credit losses resulting from the inability of customers to make required payments. This allowance is established using estimates formulated by the Company’s management based upon factors such as the composition of the accounts receivable aging, historical losses, changes in payments patterns, customer creditworthiness, and current economic trends. Receivables determined to be uncollectible are written off and deducted from the allowance.
| Allowance for Credit Losses
| Three Months Ended
(In thousands) | March 31, 2020
Beginning balance | $ | (763 | )
Provision for credit loss expense | — |
Receivables written off | 154 |
Recoveries collected | — |
Ending balance | $ | (609 | )
Schedule of Inventory, Current | Inventories
(In thousands) | March 31, 2020 |  | December 31, 2019
Raw materials | $ | 41,413 |  |  | $ | 39,058 |
Work-in-process | 33,809 |  |  | 25,982 |
Finished goods | 21,411 |  |  | 25,340 |
Total | $ | 96,633 |  |  | $ | 90,380 |
Schedule of Prepaid Expenses and Other Current Assets | Prepaid Expenses and Other Current Assets
(In thousands) | March 31, 2020 |  | December 31, 2019
Prepaid legal fees | $ | 157 |  |  | $ | 16 |
Prepaid income tax | 6,230 |  |  | 5,615 |
Prepaid maintenance agreements | 1,318 |  |  | 819 |
Interest receivable | 1,712 |  |  | 1,279 |
Advance to suppliers | 4,204 |  |  | 3,579 |
Other | 6,949 |  |  | 4,289 |
Total | $ | 20,570 |  |  | $ | 15,597 |
Schedule Of Intangible Assets | Intangible Assets
| March 31, 2020 |  | December 31, 2019
(In thousands) | Gross |  | Accumulated Amortization |  | Net |  | Gross |  | Accumulated Amortization |  | Net
Domain name | $ | 1,261 |  |  | $ | — |  |  | $ | 1,261 |  |  | $ | 1,261 |  |  | $ | — |  |  | $ | 1,261 |
Developed technology | 37,960 |  |  | (26,730 | ) |  | 11,230 |  |  | 37,960 |  |  | (25,933 | ) |  | 12,027 |
Customer relationships | 16,700 |  |  | (15,025 | ) |  | 1,675 |  |  | 20,030 |  |  | (18,098 | ) |  | 1,932 |
Technology licenses | 1,926 |  |  | (344 | ) |  | 1,582 |  |  | 1,926 |  |  | (281 | ) |  | 1,645 |
Total | $ | 57,847 |  |  | $ | (42,099 | ) |  | $ | 15,748 |  |  | $ | 61,177 |  |  | $ | (44,312 | ) |  | $ | 16,865 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense | The estimated future amortization expense related to finite-lived intangible assets at March 31, 2020, is as follows:
Fiscal Year | Estimated Amortization (In thousands)
2020 (remaining nine months) | $ | 3,242 |
2021 | 3,494 |
2022 | 2,415 |
2023 | 2,173 |
2024 | 1,279 |
Thereafter | 1,884 |
Total | $ | 14,487 |
Schedule of Accumulated Other Comprehensive Income (Loss) | Changes in accumulated other comprehensive loss for three months ended March 31, 2020 and 2019, were as follows:
| Unrealized Gains and Losses on Marketable Securities |  | Defined Benefit Pension Items |  | Foreign Currency Items |  | Total
| Three Months Ended |  | Three Months Ended |  | Three Months Ended |  | Three Months Ended
| March 31, |  | March 31, |  | March 31, |  | March 31,
(In thousands) | 2020 |  | 2019 |  | 2020 |  | 2019 |  | 2020 |  | 2019 |  | 2020 |  | 2019
Beginning balance | $ | 583 |  |  | $ | (266 | ) |  | $ | (2,484 | ) |  | $ | (712 | ) |  | $ | (1,229 | ) |  | $ | (711 | ) |  | $ | (3,130 | ) |  | $ | (1,689 | )
Other comprehensive income (loss) before reclassifications | (952 | ) |  | 334 |  |  | — |  |  | — |  |  | (283 | ) |  | (22 | ) |  | (1,235 | ) |  | 312 |
Amounts reclassified from accumulated other comprehensive loss | — |  |  | — |  |  | 51 |  | (1) | 16 |  | (1) | — |  |  | — |  |  | 51 |  |  | 16 |
Net-current period other comprehensive income (loss) | (952 | ) |  | 334 |  |  | 51 |  |  | 16 |  |  | (283 | ) |  | (22 | ) |  | (1,184 | ) |  | 328 |
Ending balance | $ | (369 | ) |  | $ | 68 |  |  | $ | (2,433 | ) |  | $ | (696 | ) |  | $ | (1,512 | ) |  | $ | (733 | ) |  | $ | (4,314 | ) |  | $ | (1,361 | )
_______________
(1) | This component of accumulated other comprehensive income (loss) is included in the computation of net periodic pension cost for the three months ended March 31, 2020 and 2019.

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