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ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables) | 12 Months Ended
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Dec. 31, 2017
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 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, 2015, net of tax |  | $ | (28 | ) |  | $ | (4,354 | ) |  | $ | — |  |  | $ | (4,382 | ) |  |
Other comprehensive loss before reclassification |  |  | (83 | ) |  |  | (388 | ) |  |  | — |  |  |  | (471 | ) |  |
Plan amendment cost |  |  | — |  |  |  | (5,963 | ) |  |  | — |  |  |  | (5,963 | ) |  |
Reclassification to net income (1) |  |  | — |  |  |  | 997 |  |  |  | — |  |  |  | 997 |  |  | Selling, general and administrative, research and development
Change during period |  |  | (83 | ) |  |  | (5,354 | ) |  |  | — |  |  |  | (5,437 | ) |  |
Balance December 31 2015, 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 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 | ) |  |
(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 $1.4 million, $1.1 million and $1.0 million for the years ended December 31, 2017, 2016 and 2015, 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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