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ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables) | 12 Months Ended
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Dec. 31, 2018
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract] |
Schedule of Accumulated Other Comprehensive Loss | Amounts related to the changes in accumulated other comprehensive loss were as follows (in thousands):
|  | Unrealized gain (loss) on available-for- sale-securities |  |  | Net unrealized gain (loss) on retirement plan (2) |  |  | Change in cumulative foreign currency translation adjustment |  |  | Total |  |  | Affected line items in the consolidated statements of operations
Balance January 1, 2016, net of tax |  | $ | (111 | ) |  | $ | (9,708 | ) |  | $ | — |  |  | $ | (9,819 | ) |  |
Other comprehensive loss before reclassification |  |  | (135 | ) |  |  | (1,731 | ) |  |  | (65 | ) |  |  | (1,931 | ) |  |
Reclassification to net income (1) |  |  | — |  |  |  | 1,084 |  |  |  | — |  |  |  | 1,084 |  |  | Selling, general and administrative, research and development and cost of material sales
Change during period |  |  | (135 | ) |  |  | (647 | ) |  |  | (65 | ) |  |  | (847 | ) |  |
Balance December 31 2016, net of tax |  |  | (246 | ) |  |  | (10,355 | ) |  |  | (65 | ) |  |  | (10,666 | ) |  |
Other comprehensive gain (loss) before reclassification |  |  | (12 | ) |  |  | (2,184 | ) |  |  | 28 |  |  |  | (2,168 | ) |  |
Reclassification to net income (1) |  |  | — |  |  |  | 1,370 |  |  |  | — |  |  |  | 1,370 |  |  | Selling, general and administrative, research and development and cost of material sales
Change during period |  |  | (12 | ) |  |  | (814 | ) |  |  | 28 |  |  |  | (798 | ) |  |
Balance December 31, 2017, net of tax |  |  | (258 | ) |  |  | (11,169 | ) |  |  | (37 | ) |  |  | (11,464 | ) |  |
Other comprehensive gain (loss) before reclassification |  |  | 268 |  |  |  | (6,690 | ) |  |  | (9 | ) |  |  | (6,431 | ) |  |
Reclassification to net income (1) |  |  | — |  |  |  | 1,661 |  |  |  | — |  |  |  | 1,661 |  |  | Selling, general and administrative, research and development and cost of material sales
Change during period |  |  | 268 |  |  |  | (5,029 | ) |  |  | (9 | ) |  |  | (4,770 | ) |  |
Balance December 31, 2018, net of tax |  | $ | 10 |  |  | $ | (16,198 | ) |  | $ | (46 | ) |  | $ | (16,234 | ) |  |
(1) | The Company reclassified amortization of plan amendment cost, prior service cost, and actuarial loss for its retirement plan from accumulated other comprehensive loss to net income of $1.7 million, $1.4 million and $1.1 million for the years ended December 31, 2018, 2017 and 2016, respectively.
(2) | Refer to Note 15: Employee Retirement Plans

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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